Charcoal
#223744 · Charcoal
#223744 is Charcoal, a cool blue color. It has an RGB value of 34, 55, 68 and a relative luminance of 0.035, making it a dark surface.
Temperature
❄ Cool
Hue family
blue
Luminance
0.03
Conversions
HEX
RGB
HSL
HSV
CMYK
OKLCHPro
Contrast & accessibility
On white
The quick fox
12.37:1
AA normal✓
AA large✓
AAA normal✓
On black
The quick fox
1.70:1
AA normal✕
AA large✕
AAA normal✕
Color harmonies
Shades & tints
Similar named colors
Frequently asked
What is the color #223744?
#223744 is Charcoal, a cool blue color. In RGB it is 34, 55, 68, and in HSL it is 203°, 33%, 20%.
Is #223744 a light or dark color?
#223744 has a relative luminance of 0.035, so it reads as a dark surface. Use light text on top of it for the best contrast.
What colors go well with #223744?
Its complementary color is #442F22. For softer combinations, try the analogous or split-complementary harmonies shown above.