Cobalt
#421C73 · Cobalt
#421C73 is Cobalt, a cool violet color. It has an RGB value of 66, 28, 115 and a relative luminance of 0.032, making it a dark surface.
Temperature
❄ Cool
Hue family
violet
Luminance
0.03
Conversions
HEX
RGB
HSL
HSV
CMYK
OKLCHPro
Contrast & accessibility
On white
The quick fox
12.76:1
AA normal✓
AA large✓
AAA normal✓
On black
The quick fox
1.65:1
AA normal✕
AA large✕
AAA normal✕
Color harmonies
Complementary
Split-complementary
Shades & tints
Similar named colors
Frequently asked
What is the color #421C73?
#421C73 is Cobalt, a cool violet color. In RGB it is 66, 28, 115, and in HSL it is 266°, 61%, 28%.
Is #421C73 a light or dark color?
#421C73 has a relative luminance of 0.032, so it reads as a dark surface. Use light text on top of it for the best contrast.
What colors go well with #421C73?
Its complementary color is #4D731C. For softer combinations, try the analogous or split-complementary harmonies shown above.