Cobalt
#15117E · Cobalt
#15117E is Cobalt, a cool blue color. It has an RGB value of 21, 17, 126 and a relative luminance of 0.021, making it a dark surface.
Temperature
❄ Cool
Hue family
blue
Luminance
0.02
Conversions
HEX
RGB
HSL
HSV
CMYK
OKLCHPro
Contrast & accessibility
On white
The quick fox
14.86:1
AA normal✓
AA large✓
AAA normal✓
On black
The quick fox
1.41:1
AA normal✕
AA large✕
AAA normal✕
Color harmonies
Complementary
Split-complementary
Shades & tints
Similar named colors
Frequently asked
What is the color #15117E?
#15117E is Cobalt, a cool blue color. In RGB it is 21, 17, 126, and in HSL it is 242°, 76%, 28%.
Is #15117E a light or dark color?
#15117E has a relative luminance of 0.021, so it reads as a dark surface. Use light text on top of it for the best contrast.
What colors go well with #15117E?
Its complementary color is #7A7E11. For softer combinations, try the analogous or split-complementary harmonies shown above.