Charcoal
#1C1F21 · Charcoal
#1C1F21 is Charcoal, a cool blue color. It has an RGB value of 28, 31, 33 and a relative luminance of 0.013, making it a dark surface.
Temperature
❄ Cool
Hue family
blue
Luminance
0.01
Conversions
HEX
RGB
HSL
HSV
CMYK
OKLCHPro
Contrast & accessibility
On white
The quick fox
16.57:1
AA normal✓
AA large✓
AAA normal✓
On black
The quick fox
1.27:1
AA normal✕
AA large✕
AAA normal✕
Color harmonies
Shades & tints
Similar named colors
Frequently asked
What is the color #1C1F21?
#1C1F21 is Charcoal, a cool blue color. In RGB it is 28, 31, 33, and in HSL it is 204°, 8%, 12%.
Is #1C1F21 a light or dark color?
#1C1F21 has a relative luminance of 0.013, so it reads as a dark surface. Use light text on top of it for the best contrast.
What colors go well with #1C1F21?
Its complementary color is #211E1C. For softer combinations, try the analogous or split-complementary harmonies shown above.