Charcoal
#42474D · Charcoal
#42474D is Charcoal, a cool blue color. It has an RGB value of 66, 71, 77 and a relative luminance of 0.062, making it a dark surface.
Temperature
❄ Cool
Hue family
blue
Luminance
0.06
Conversions
HEX
RGB
HSL
HSV
CMYK
OKLCHPro
Contrast & accessibility
On white
The quick fox
9.37:1
AA normal✓
AA large✓
AAA normal✓
On black
The quick fox
2.24:1
AA normal✕
AA large✕
AAA normal✕
Color harmonies
Complementary
Split-complementary
Shades & tints
Similar named colors
Frequently asked
What is the color #42474D?
#42474D is Charcoal, a cool blue color. In RGB it is 66, 71, 77, and in HSL it is 213°, 8%, 28%.
Is #42474D a light or dark color?
#42474D has a relative luminance of 0.062, so it reads as a dark surface. Use light text on top of it for the best contrast.
What colors go well with #42474D?
Its complementary color is #4D4842. For softer combinations, try the analogous or split-complementary harmonies shown above.