Glaucous - Misplaced Pages

(Redirected from Bluish-gray) Pale grey or bluish-green appearance of the surfaces of some plants Not to be confused with Glaucus.

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Glaucous

Color coordinates
Hex triplet	#6082B6
sRGB (r, g, b)	(96, 130, 182)
HSV (h, s, v)	(216°, 47%, 71%)
CIELCh_uv (L, C, h)	(54, 51, 250°)
Source	ISCC-NBS
ISCC–NBS descriptor	Moderate blue
B: Normalized to (byte)

Glaucous (from Latin glaucus, from Ancient Greek γλαυκός (glaukós) 'blue-green, blue-grey') is used to describe the pale grey or bluish-green appearance of the surfaces of some plants, as well as in the names of birds, such as the glaucous gull (Larus hyperboreus), glaucous-winged gull (Larus glaucescens), glaucous macaw (Anodorhynchus glaucus), and glaucous tanager (Thraupis glaucocolpa).

The term glaucous is also used botanically as an adjective to mean "covered with a greyish, bluish, or whitish waxy coating or bloom that is easily rubbed off" (e.g. glaucous leaves).

The first recorded use of glaucous as a color name in English was in the year 1671.

Examples

The epicuticular wax coating on mature plum fruit gives them a glaucous appearance. Another familiar example is found in the common grape genus (Vitis vinifera). Some cacti have a glaucous coating on their stem(s). Glaucous coatings are hydrophobic so as to prevent wetting by rain. Their waxy character serves to hinder climbing of leaves, stem or fruit by insects. On fruits, glaucous coatings may function as a deterrent to climbing and feeding by small insects in favor of increased seed dispersal offered by larger animals such as mammals and birds.

The blue-grey camouflage coloring of some species of birds and sea and land animals causes their appearance to blend with their surroundings, making their detection by predators or prey difficult.

Wine grapes with glaucous coating
Plums with some glaucous coating visible
Sedum spathulifolium is a glaucous perennial herbaceous plant.
Glaucous gull (Larus hyperboreus)
Blue shark (Prionace glauca)

References

"Glaucous". The Free Dictionary. Farlex. Retrieved 22 February 2021.
"glaucous". Collins. Collins English Library. Retrieved 22 February 2021.
"Glaucous, a.". Oxford English Dictionary. 2010.

External links

The dictionary definition of glaucous at Wiktionary

Shades of blue

Aero	Air Force blue	Air superiority blue	Alice Blue	Argentinian Blue	Aquamarine	Azure	Azul	Baby blue	Berkeley Blue

Bice blue	Bleu de France	Blue	Blue Bell	Blue-gray	Blue-violet	Blurple	Bondi blue	Brandeis blue	Byzantine blue

Cambridge blue	Carolina blue	Celestial Blue	Celestial Blue (Crayola)	Celtic Blue	Cerulean	Chefchaouen Blue	Chrysler blue	Cobalt blue	Columbia blue

Cornflower (Crayola)	Cornflower	Cyan	Baby blue	Blue (Crayola)	Dark blue	Deep Sky Blue	Delft Blue	Denim	Dodger blue

Duke blue	Egyptian blue	Glaucous	Green-blue	Electric indigo	French blue	Honolulu blue	Ice blue	Illini blue	Indigo

Indigo dye	International Klein Blue	Jordy Blue	Lapis Lazuli	Lavender	Lavender mist	Lavender gray	Light blue	Light Sky Blue	Majorelle Blue

Marian blue	Manatee	Maximum Blue Green	Maximum Blue Purple	Maya blue	Medium blue	Medium slate blue	Midnight blue	Blue (Munsell)	Navy blue

Blue (NCS)	Neon blue	Non-photo blue	Oxford Blue	Palatinate blue	Pale azure	Penn Blue	Periwinkle	Periwinkle (Crayola)	Persian blue

Phthalo blue	Picton Blue	Polynesian blue	Powder blue	Prussian blue	Resolution Blue	RISD Blue	Royal Blue (web color)	Royal blue (traditional)	Ruddy Blue

Sapphire	Savoy blue	Silver Lake Blue	Sky blue	Space cadet	Steel blue	Tang Blue	True Blue	Tufts Blue	UCLA Blue

Examples

See also

References

External links