Glaucous

Not to be confused with Glaucus.

Glaucous

Color coordinates
Hex triplet	#6082B6
sRGB^B (r, g, b)	(96, 130, 182)
CMYK^H (c, m, y, k)	(47, 29, 0, 29)
HSV (h, s, v)	(216°, 47%, 71%)
Source	ISCC-NBS
B: Normalized to [0–255] (byte) H: Normalized to [0–100] (hundred)

Glaucous (from the Latin glaucus, meaning "bluish-grey or green", from the Greek glaukós) 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.^[1]

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.
Larus hyperboreus (glaucous gull)
Blue shark (Prionace glauca)

References

↑ "Glaucous, a.". Oxford English Dictionary. 2010. |access-date= requires |url= (help)

External links

Wikimedia Commons has media related to Glaucous leaves.

The dictionary definition of glaucous at Wiktionary

Shades of blue

Air Force blue	Air superiority blue	Alice blue	Azure	Baby blue	Bleu de France	Blue	Blue-gray	Bondi blue	Brandeis blue

Cambridge Blue	Carolina blue	Celeste	Cerulean	Cobalt blue	Columbia blue	Cornflower blue	Cyan	Dark blue	Deep sky blue

Denim	Dodger blue	Duke blue	Egyptian blue	Electric blue	Eton blue	Federal blue	Glaucous	Electric indigo	Indigo

International Klein Blue	Iris	Light blue	Majorelle Blue	Maya blue	Medium blue	Midnight blue	Navy blue	Non-photo blue	Oxford Blue

Palatinate blue	Periwinkle	Persian blue	Phthalo blue	Powder blue	Prussian blue	Royal blue	Sapphire	Sky blue	Steel blue

Teal	Tiffany Blue	True Blue	Tufts Blue	Turquoise	UCLA Blue	Ultramarine	Violet-blue	Viridian	Yale Blue

Zaffre

Related topics:Ao - St. Patrick's blue - Template:Shades of cyan

Shades of gray

Gray	Ash gray	Battleship gray	Black	Blue-gray	Cadet gray	Charcoal	Cool gray	Davy's gray	Payne's gray

Gunmetal	Platinum	Silver	Slate gray	Taupe	Purple taupe	Medium taupe	Rose quartz	Taupe gray	Timberwolf

A typical sample is shown for each name; however, a range of color-variations is commonly associated with each color-name.

This article is issued from Wikipedia - version of the Wednesday, May 06, 2015. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.

Glaucous

Examples

See also

References

External links