Charcoal
#0B285B · Charcoal
#0B285B is Charcoal, a cool blue color. It has an RGB value of 11, 40, 91 and a relative luminance of 0.023, 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
14.30:1
AA normal✓
AA large✓
AAA normal✓
On black
The quick fox
1.47:1
AA normal✕
AA large✕
AAA normal✕
Color harmonies
Complementary
Split-complementary
Shades & tints
Similar named colors
Frequently asked
What is the color #0B285B?
#0B285B is Charcoal, a cool blue color. In RGB it is 11, 40, 91, and in HSL it is 218°, 78%, 20%.
Is #0B285B a light or dark color?
#0B285B 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 #0B285B?
Its complementary color is #5B3E0B. For softer combinations, try the analogous or split-complementary harmonies shown above.