Crimson
#CF171D · Crimson
#CF171D is Crimson, a warm red color. It has an RGB value of 207, 23, 29 and a relative luminance of 0.140, making it a dark surface.
Temperature
☀ Warm
Hue family
red
Luminance
0.14
Conversions
HEX
RGB
HSL
HSV
CMYK
OKLCHPro
Contrast & accessibility
On white
The quick fox
5.54:1
AA normal✓
AA large✓
AAA normal✕
On black
The quick fox
3.79:1
AA normal✕
AA large✓
AAA normal✕
Color harmonies
Complementary
Split-complementary
Shades & tints
Similar named colors
Frequently asked
What is the color #CF171D?
#CF171D is Crimson, a warm red color. In RGB it is 207, 23, 29, and in HSL it is 358°, 80%, 45%.
Is #CF171D a light or dark color?
#CF171D has a relative luminance of 0.140, so it reads as a dark surface. Use light text on top of it for the best contrast.
What colors go well with #CF171D?
Its complementary color is #17CFC8. For softer combinations, try the analogous or split-complementary harmonies shown above.