Cobalt
#31209D · Cobalt
#31209D is Cobalt, a cool blue color. It has an RGB value of 49, 32, 157 and a relative luminance of 0.041, making it a dark surface.
Temperature
❄ Cool
Hue family
blue
Luminance
0.04
Conversions
HEX
RGB
HSL
HSV
CMYK
OKLCHPro
Contrast & accessibility
On white
The quick fox
11.51:1
AA normal✓
AA large✓
AAA normal✓
On black
The quick fox
1.82:1
AA normal✕
AA large✕
AAA normal✕
Color harmonies
Complementary
Split-complementary
Shades & tints
Similar named colors
Frequently asked
What is the color #31209D?
#31209D is Cobalt, a cool blue color. In RGB it is 49, 32, 157, and in HSL it is 248°, 66%, 37%.
Is #31209D a light or dark color?
#31209D has a relative luminance of 0.041, so it reads as a dark surface. Use light text on top of it for the best contrast.
What colors go well with #31209D?
Its complementary color is #8C9D20. For softer combinations, try the analogous or split-complementary harmonies shown above.