Charcoal
#02303B · Charcoal
#02303B is Charcoal, a cool cyan color. It has an RGB value of 2, 48, 59 and a relative luminance of 0.024, making it a dark surface.
Temperature
❄ Cool
Hue family
cyan
Luminance
0.02
Conversions
HEX
RGB
HSL
HSV
CMYK
OKLCHPro
Contrast & accessibility
On white
The quick fox
14.11:1
AA normal✓
AA large✓
AAA normal✓
On black
The quick fox
1.49:1
AA normal✕
AA large✕
AAA normal✕
Color harmonies
Shades & tints
Similar named colors
Frequently asked
What is the color #02303B?
#02303B is Charcoal, a cool cyan color. In RGB it is 2, 48, 59, and in HSL it is 192°, 93%, 12%.
Is #02303B a light or dark color?
#02303B has a relative luminance of 0.024, so it reads as a dark surface. Use light text on top of it for the best contrast.
What colors go well with #02303B?
Its complementary color is #3B0E02. For softer combinations, try the analogous or split-complementary harmonies shown above.