Cobalt
#21008F · Cobalt
#21008F is Cobalt, a cool violet color. It has an RGB value of 33, 0, 143 and a relative luminance of 0.023, making it a dark surface.
Temperature
❄ Cool
Hue family
violet
Luminance
0.02
Conversions
HEX
RGB
HSL
HSV
CMYK
OKLCHPro
Contrast & accessibility
On white
The quick fox
14.37:1
AA normal✓
AA large✓
AAA normal✓
On black
The quick fox
1.46:1
AA normal✕
AA large✕
AAA normal✕
Color harmonies
Complementary
Split-complementary
Shades & tints
Similar named colors
Frequently asked
What is the color #21008F?
#21008F is Cobalt, a cool violet color. In RGB it is 33, 0, 143, and in HSL it is 254°, 100%, 28%.
Is #21008F a light or dark color?
#21008F has a relative luminance of 0.023, so it reads as a dark surface. Use light text on top of it for the best contrast.
What colors go well with #21008F?
Its complementary color is #6D8F00. For softer combinations, try the analogous or split-complementary harmonies shown above.