Crimson
#E21203 · Crimson
#E21203 is Crimson, a warm red color. It has an RGB value of 226, 18, 3 and a relative luminance of 0.166, making it a dark surface.
Temperature
☀ Warm
Hue family
red
Luminance
0.17
Conversions
HEX
RGB
HSL
HSV
CMYK
OKLCHPro
Contrast & accessibility
On white
The quick fox
4.86:1
AA normal✓
AA large✓
AAA normal✕
On black
The quick fox
4.32:1
AA normal✕
AA large✓
AAA normal✕
Color harmonies
Complementary
Split-complementary
Shades & tints
Similar named colors
Frequently asked
What is the color #E21203?
#E21203 is Crimson, a warm red color. In RGB it is 226, 18, 3, and in HSL it is 4°, 97%, 45%.
Is #E21203 a light or dark color?
#E21203 has a relative luminance of 0.166, so it reads as a dark surface. Use light text on top of it for the best contrast.
What colors go well with #E21203?
Its complementary color is #03D3E2. For softer combinations, try the analogous or split-complementary harmonies shown above.