Cobalt
#0F37AE · Cobalt
#0F37AE is Cobalt, a cool blue color. It has an RGB value of 15, 55, 174 and a relative luminance of 0.059, making it a dark surface.
Temperature
❄ Cool
Hue family
blue
Luminance
0.06
Conversions
HEX
RGB
HSL
HSV
CMYK
OKLCHPro
Contrast & accessibility
On white
The quick fox
9.64:1
AA normal✓
AA large✓
AAA normal✓
On black
The quick fox
2.18:1
AA normal✕
AA large✕
AAA normal✕
Color harmonies
Complementary
Split-complementary
Shades & tints
Similar named colors
Frequently asked
What is the color #0F37AE?
#0F37AE is Cobalt, a cool blue color. In RGB it is 15, 55, 174, and in HSL it is 225°, 84%, 37%.
Is #0F37AE a light or dark color?
#0F37AE has a relative luminance of 0.059, so it reads as a dark surface. Use light text on top of it for the best contrast.
What colors go well with #0F37AE?
Its complementary color is #AE860F. For softer combinations, try the analogous or split-complementary harmonies shown above.