Charcoal
#663B00 · Charcoal
#663B00 is Charcoal, a warm orange color. It has an RGB value of 102, 59, 0 and a relative luminance of 0.060, making it a dark surface.
Temperature
☀ Warm
Hue family
orange
Luminance
0.06
Conversions
HEX
RGB
HSL
HSV
CMYK
OKLCHPro
Contrast & accessibility
On white
The quick fox
9.59:1
AA normal✓
AA large✓
AAA normal✓
On black
The quick fox
2.19:1
AA normal✕
AA large✕
AAA normal✕
Color harmonies
Complementary
Split-complementary
Shades & tints
Similar named colors
Frequently asked
What is the color #663B00?
#663B00 is Charcoal, a warm orange color. In RGB it is 102, 59, 0, and in HSL it is 35°, 100%, 20%.
Is #663B00 a light or dark color?
#663B00 has a relative luminance of 0.060, so it reads as a dark surface. Use light text on top of it for the best contrast.
What colors go well with #663B00?
Its complementary color is #002A66. For softer combinations, try the analogous or split-complementary harmonies shown above.