I am so pleased that you have arrived here knowing that both morning colours and sunset ceremonies are not due, so we can take a breather. Do you remember getting 'caught' in the ceremonies, forgetting for a moment what the time was when you dashed from one position to another?

My subject is colour per se, but for today, specifically one colour only.

Below is a picture showing where colour fits into the EM spectrum, and you can see that at a relatively large wavelength we begin with the colour RED finishing at a relatively small wavelength with BLUE.  The total visible light spectrum looks rather like a large medal ribbon with  RED BLUE and GREEN  [RBG] showing large amounts of colour, whilst other colours present appear as vague tints.  For those of you who failed physics at school, UV and IR [either side of Visible Light] means respectively, Ultra Violet and Infra Red.

When I did my physics, I learnt the Colour Spectrum by remembering

OR BY GVI [where GVI was King George the 6th]

Remembering them that way rather mixed them up from their correct order, but we could all shout out Orange, Red, Blue, Yellow, Green, Violet, Indigo on cue from our teacher.

Colours play an important part is our vocabulary and terms like:

...every cloud has a SILVER lining.........
...........a
BLACK-out has been imposed..........
..............it is a
RED letter day.............

are proverbial.

Recently, the colour PINK caught my eye. Pink is nearly always associated with the fair sex, and we love to dress our daughters in pink coloured clothes leaving blue coloured things for us, the boys. Our wives and sisters look pretty in pink, our mothers sophisticated and our dear grannies look serene. Pink is a warm colour, feminine and un-aggressive.

However, did you know that the Navy and 'things' of the sea, use Pink for a whole host of reasons. Perhaps you may know of more uses for the colour and moreover, many further uses for the other colours.

I have used the Oxford English Dictionary for my research and where necessary, I have quoted line and verse.

TERM MEANING
In the PINK b. The most perfect condition or degree of something; the height, extreme. Also freq. with ellipse of of condition, of health, etc. colloq.
1767 G. S. Carey Hills of Hybla 20 Behold her sailing in the pink of taste, Trump'd up with powder, frippery and paste.
_1821 Keats Castle Builder in Poetical Wks. (1907) 298 Let me think About my room,---I'll have it in the pink; It should be rich and sombre.
1840 Thackeray Paris Sk.-bk. (1872) 173 In the very pink of the mode.
1845 Dickens Let. 18 Mar. (1977) IV. 282 Of all the picturesque abominations in the World, commend me to Fondi. It is the very pink of hideousness and squalid misery.
1893 Vizetelly Glances Back I. xiii. 255 [He] got himself up in the very pink of fashion.
1905 Kynoch Jrnl. Oct._Dec. 201 Makers may despatch explosives from the factory in the pink of condition.
1914 Isle of Man Weekly Times 21 Nov. 7/5 He says that he is _in the pink'.
1916 C. Winchester Flying Men 193, I saw a couple of R.F.C. officers_the other day. They looked _in the pink'.
1923 Wodehouse Inimitable Jeeves xi. 115 _Oh, hallo!' I said. _Going strong?' _I am in excellent health, I thank you. And you?' _In the pink. Just been over to America.'
1929 J. B. Priestley Good Companions ii. vii. 453, I am writing these lines to say I am still in the pink and hoping you are the same.
1937 A. Huxley Let. 25 Feb. (1969) 415 Quant à moi, I was in the pink until about a week ago.
1950 [see coin v.1 5 d].
1973 _P. Malloch' Kick_back vi. 37 Gilchrist shook hands. _O.K. How about you?' _In the pink,' Campbell said.
1976 Dexter & Makins Testkill 129 A young Alsatian in the pink of condition.
PINKy A polite nickname used by General Service personnel for Fleet Air Arm personnel
PINKy A pet name for a wardmaster because of the pink salmon coloured cloth he wore between his commissioned rings of rank.
PINK list A confidential list published regularly by the Admiralty giving operational details of all ships in the Navy, their whereabouts and their readiness for war.
PINK chit A system devised in the destroyer HMS Bristol in the mid 70's whereby senior rates who were known heavy drinkers, but who were not, under Navy definitions, drunk, could be monitored - on the Pink Chit - before being subsequently warned and given an opportunity to moderate their excesses before being punished proper. As the 'offender' came off shore, his condition would be recorded in writing by the OOW/OOD. The chit would then be passed to the Executive Officer/1st Lieutenant who would liaise with the mans Divisional Officer.  
PINK gin A well known Navy wardroom drink.  Never drank on the lower deck.
11. A pink gin; the bitters in this drink.
1942 G. Hackforth-Jones One-One-One xxii. 203 _Eeyore' Smith absent-mindedly added a dash of _pink' to his evening aperitif.
1969 G. Greene Trav. with my Aunt i. xx. 213 _Another double', _Pint of best bitter', _Double pink'.
1976 _F. Clifford' Drummer in Dark iv. 15 _What'll it be?' _A pink, please.'
PINKy A much frequented public house in the village of Soberton Hampshire, in which Soberton Towers, a very large former private estate was used to accommodate WRNS ratings who were undergoing Communications Training at nearby HMS Mercury.
galliot PINK A small Dutch yacht
_ galliot-hoy, _ pink, yacht, small vessels resembling a Dutch galliot in build.
1665 Lond. Gaz. No. 12/1 Captain Robinson hath sent into Falmouth a *Galliot-Hoy, bound for Bordeaux.
1689 Ibid. No. 2496/4 A Galliot-Hoy_being seven Foot and a half under the Beam, 56 Foot in length.
Ibid. No. 2517/4 There will be exposed to Sale_a *Galliot Pink called the Mermaid of Amsterdam.
1709 Ibid. No. 4543/3 A Galliot Pink_burthen about 90 Tuns, Holland built.
_1895 Ld. C. E. Paget Autobiog. i. (1896) 5 He had a Dutch *galliot yacht_which used to cruise with the royal squadron.
a PINK 
and PINK stern
pink (____), n.1 Now chiefly Hist. Forms: 5_7 pinck, 6 pyncke, 6_7 pin(c)ke, 7 pynke, 6_ pink.
[app. a. MDu. pincke, pinke, name of a small sea-going ship, also a fishing-boat (1477_8 in Verw. & Verdam), in Kilian pinck, mod.Du. pink; in MLG., LG., and mod.Ger. pinke; also F. pinque (1690 in Furetière, pinquet 1634 in Hatz.-Darm.), It. pinco: ulterior origin unknown (Jal).]
A sailing vessel; orig. one of small size used for coasting and fishing, described as flat-bottomed and having bulging sides; in the 17th and 18th c. applied to ships of considerable size, esp. war-ships; see also quot. 1794. A common characteristic in later times appears to have been a narrow stern: cf. pink-stern, -sterned in b.
The description of the Dutch pinks and that of the pinks of the Mediterranean differ considerably: see the quots. _ sword pink, one provided with lee-boards [Du. zwaard (sweerd Kilian) a lee-board].
PINK boat
PINK rigged
PINK snow
b. attrib. and Comb., as pink-boat (see quot. 1471 above), pink-rigged adj.;
pink-snow, a snow resembling a pink in build;
pink-stern, a stern like that of a pink; hence, a small vessel having a narrow stern;
so pink-sterned a. (cf. 1769 above).
1711 W. Sutherland Shipbuild. Assist. 60 For round or pink-stern'd Ships.
1722 Forster in Phil. Trans. XXXII. 100 A small Pink-Snow, called the Richard and Elizabeth.
1759 Ann. Reg. 64/2 A French privateer_fell in with an English brig, pink-stern about 100 tons burthen.
1808 A. Parsons Trav. viii. 169 The galliote which the Eagle had taken_is built forward like a London wherry, with a pink or lute stern.

1861 L. L. Noble Icebergs 77 A pink-sterned schooner, of only sixty-five tons.
Ibid. 89 At eight o'clock, our brave little pink-stern was lying at anchor in her haven.
1867 Smyth Sailor's Word-bk., Flute, or Fluyt, a pink-rigged fly-boat.
Ibid., Pinkstern, a very narrow boat on the Severn.
1890 in Haswell Maister (1895) 112 In 1833_I sailed in the well-known old Liberty and Property---a collier with _pink' stern; the last of her race, I believe.
PINK pink (____), n.2, penk (____). Forms: _. 5_ penk, 7 penck, penke; also 8_9 pank. _. 7 pinck, 7_ pink.
[Origin obscure: cf. dial. Ger. pink(e fem., (1) minnow, (2) small salmon, (3) a kind of eel. The historical Eng. form was penk, for which pink began to appear in 17th c., and has been adopted in fishery statutes in sense 2.
It has no connexion with pink the flower, nor with pink the colour, as erroneously assumed by some.]

1. A minnow. Now dial.
_._1490 Botoner Itin. (1778) 358 Yn Wye-water sunt_penkys.
1651_3 T. Barker Art of Angling 4 The angling with a Menow, called in some places Pencks [ed. 1820, Pincks].
1653 Walton Angler iv. 93 With a Worm, or a Minnow (which some call a Penke).
1787 Grose Provinc. Gloss., Pank, or Pink, a minnow. N.
1828 T. C. Croker Fairy Leg. II. 57 Penk or Pink [is] the name of the little fish more commonly called in England minnow.
1891 A. Lang in Longm. Mag. Aug. 446 An artificial penk.
_._1687 Cotton Angler's Ballad ii. Poems (1689) 76 And full well you may think, If you troll with a Pink, One [fishing-rod] too weak will be apt to miscarry.
PINK pink (____), n.3
[f. pink v.1, q.v. for Forms.]
_ 1. A hole or eyelet punched in a garment for decorative purposes; also, scalloping done for the same purpose: cf. pinking vbl. n.1, pinking-iron.
1512 Acc. Ld. High Treas. Scot. IV. 215 Item,_for iiije powdringis and pinkis to the sam goune,_xij s.
1598 Florio, Tagliuzzi, small pinks, cuts or iagges in clothes.
1599 B. Jonson Cynthia's Rev. v. iv, Is this pinke of equall proportion to this cut?
1632 ---- Magn. Lady iii. iv, You had rather have An ulcer in your body, than a pink More in your clothes.
_ 2. A stab with a poniard, rapier, etc. Obs.
1601 Weever Mirr. Mart. C j, At a great word she will her poynard draw, Looke for the pincke if once thou giue the lye.
1638 Ford Lady's Trial iii. i, The fellow's a shrewd fellow at a pink.
b. A shot-wound.
1885 Pall Mall G. 13 May 4/1 He is spotted with marks of stabs and revolver _pinks', and he takes all his wounds quite as matter of course.
a PINK
quite possibly used when referring to rich smart naval officers
c. A beauty; an exquisite, a smart person, one of the élite. ? Obs.
1602 Breton Merry Wonders B iij, He had a pretty pincke to his own wedded wife.
1821 Sporting Mag. IX. 27 A new white upper tog, that would have given a sporting appearance to a pink of Regent-street.
1827 Fonblanque Eng. under 7 Administr. (1837) I. 55 His Vice runs into the contrary extreme. He is a Pink, an Exquisite.
PINK on a map or atlas c. As a colour commonly used on maps to indicate a British colony or dominion. Cf. red n.1 1 e.
1913 C. Mackenzie Sinister St. I. ii. xv. 407 She said half the world was composed of fools which accounted for the preponderation---I mean preponderance---of pink on the map.
PINK anger 4. Violent, extreme; utter, absolute (see also quot. 1896). slang.
1896 W. C. Gore in Inlander Jan. 149 Pink, used to intensify the negative. _He didn't know a pink thing about the lesson.'
1901 Daily Express 28 Aug. 4/3 The master of the house flies into a pink rage because his chop is not done.
1946 B. Marshall George Brown's Schooldays 145 These rotten new kids really are the pink limit.
PINK slightly indecent 5. Slightly indecent, violent, or vulgar; mildly _blue' (see blue a. 9).
1898 R. Hichens Londoners xvi. 280 Lovely needle_work! That's a funny beginning for a Pink un.
1900 Daily News 28 May 3/1 Most of their adjectives have a decidedly pink tinge.
1979 J. Melville Wages of Zen xi. 117 One cinema showing _pink films'_and one strip show.
PINK...must be kept secret 6. Of a plan, process, etc.: that must be kept secret.
1924 Discovery June 83/1 Little was said about it [sc. wireless direction for boats and torpedoes] and in navy parlance it is a subject which is still slightly _pink', a cryptic term indicating that even if we do happen to know something, we are not prepared to make a song about it.
1925 Fraser & Gibbons Soldier & Sailor Words 224 Pink, secret. An expression in some Government Offices during the war for secret telegrams.
1962 Granville Dict. Sailors' Slang 88/2 Pink._ 2. Secret, hush_hush, from the pink (confidential) signal pads used in the Navy.
phrases using PINK...like strike me pink 8. Phrases. strike me pink! (slang): an exclamation of astonishment or indignation; to paint the town pink: to go on a spree (after to paint the town red s.v. paint v.1 10); to swear pink (colloq.): to make vehement protestations; to _swear blind'; to tickle pink: see tickle v.
1902 E. Nesbit Five Children & It viii. 218 When he beheld the magnificent proportions of Robert he said__Strike me pink!'
1922 Joyce Ulysses 623 And there he was at the end of his tether after having often painted the town tolerably pink.
1931 A. P. Herbert Derby Day iii. 115 Ten thousand serpents! Strike me pink! Where's that girl? She'll go to clink!
1956 E. Pound tr. Sophocles' Women of Trachis 20 And you swore pink they were bringing her to be Heracles' wife.
1969 Sunday Mail Mag. (Brisbane) 7 Sept. 10/1 He was further reported as commenting on certain African members of the Commonwealth in the words: _Strike me pink, they'll do me for bloody butchers.'
PINK things, any one of which could have been used by sailors c. Special combinations and collocations:
pink-ash (see quot.);
pink bed, one of the beds of sandstone in the Swanage quarries;
pink bollworm, the pinkish larva of a small brown moth, Pectinophora gossypiella, of the family Gelechiidæ, which feeds on the lint or seeds of cotton bolls;
pink button Stock Exchange, a jobber's clerk;
pink champagne, rosé champagne; champagne to which a small quantity of still red wine has been added;
pink-cheek, a fish of New South Wales, Upeneichthys porosus (Cent. Dict. 1890);
pink disease, a disease of children caused by mercury poisoning, characterized by pinkness of parts of the body, restlessness, and photophobia;
pink elephant, used as a type of the extraordinary or impossible; also (chiefly pl.), a characteristic apparition seen by someone drunk or delirious; cf. pink rat(s);
pink-fever = pink-eye1 2 (Syd. Soc. Lex. 1893);
pink-fish, a S. Californian pinkish-coloured gobioid fish, Typhlogobius californensis, which lives attached to the underside of stones (Webster 1902);
pink-foot a. poet. = pink-footed a.; n. the Pink-footed goose n. (also attrib.);
pink-footed a., having pink feet: spec. applied to the Pink-footed Goose (Anser fabalis brachyrhynchus);
pink gilding, pink gold, gilding having a pink tinge resulting from a combination of gold, silver, and copper;
pink gin, gin-and-bitters;
pink-grass, an agricultural name for species of sedge, esp. Carex glauca and C. præcox, found in pastures;
pink lady U.S.,
(a) a cocktail comprising gin, egg white, grenadine, and other ingredients;
(b) (see quot. 1968_70);
pink madder: see madder n.1 3;
pink noise Physics, random noise having equal energy per octave, and so differing from white noise in having a greater proportion of low-frequency components;
pink paper, a parliamentary paper containing the information specified in quot. 1894;
pink pine N.Z., a small forest tree, Dacrydium biforme, of the family Podocarpaceæ, bearing linear juvenile leaves and scale-like adult ones, and yielding a resin from which manool is manufactured;
pink rat(s), a characteristic apparition seen by someone drunk or delirious; cf. pink elephant;
pink salmon, the humpback salmon, Oxyrhynchus gorbuscha;
pink salt, the ammonium salt of tetrachloride of tin, 2 NH4Cl.SnCl4, used in calico-printing;
pink saucer, a saucer containing a pigment used to give a pink tint to the skin, or to garments; transf. the pigment itself;
pink slip U.S., a notice of dismissal from employment; also transf. and fig.;
hence pink-slip v. trans., to dismiss, to fire;
pink spot, used to designate a substance of uncertain composition found in the urine of some schizophrenics, observed as a pink spot on a chromatogram of it;
pink tea N. Amer., a formal tea party or other social engagement; an exclusive gathering; also used as a type of the polite or genteel; also attrib.;
pink thorn, a pink-flowered variety of the hawthorn, Cratægus monogyna;
pink toe(s) U.S. Blacks' slang, a light-skinned black woman; a white girl;
Pink 'Un
[un, 'un2], a nickname for a newspaper printed on pink paper, spec.
(a) The Sporting Times; also, a reporter for this newspaper;
(b) The Financial Times;
pinkwash, a composition used for rendering walls, etc., pink;
so pink-washed adj.;
pink wine,
(a) slang, champagne;
(b) vin rosé.