色

Astronomy

black dwarf

Mathematics

four-color theorem; four-color map theorem

blue light-emitting diode; blue LED

signs of defeat

isochromatic

mixing colors; mixing colours; tone

proud countenance

dye works

Astronomy

blue giant (star)

black; color of sediment in a still pond

(a woman of) unparalleled beauty; (a woman's beauty being) matchless throughout the land

white return; white-paper income-tax return; type of income tax return filing which does not require maintaining accounting books

additive mixture of colors; additive mixture of colours

Genetics

chromosome map

Buddhism

namarupa; name and form

Noun or verb acting prenominally

two-color; two-colour; dichromatic

Biochemistry

red blood pigment; hemoglobin; haemoglobin

Physics

quantum chromodynamics

iridescence; play of color; opalescence

color comparison

mid-bright purple

electric blue; steel blue

three-color printing (red and yellow and blue); three-colour printing

black lacquer