Crimson
#CD181E · Crimson
#CD181E is Crimson, a warm red color. It has an RGB value of 205, 24, 30 and a relative luminance of 0.137, 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
5.61:1
AA normal✓
AA large✓
AAA normal✕
On black
The quick fox
3.75:1
AA normal✕
AA large✓
AAA normal✕
Color harmonies
Complementary
Split-complementary
Shades & tints
Similar named colors
Frequently asked
What is the color #CD181E?
#CD181E is Crimson, a warm red color. In RGB it is 205, 24, 30, and in HSL it is 358°, 79%, 45%.
Is #CD181E a light or dark color?
#CD181E has a relative luminance of 0.137, so it reads as a dark surface. Use light text on top of it for the best contrast.
What colors go well with #CD181E?
Its complementary color is #18CDC7. For softer combinations, try the analogous or split-complementary harmonies shown above.