Indigo
#6C21ED · Indigo
#6C21ED is Indigo, a cool violet color. It has an RGB value of 108, 33, 237 and a relative luminance of 0.104, making it a dark surface.
Temperature
❄ Cool
Hue family
violet
Luminance
0.10
Conversions
HEX
RGB
HSL
HSV
CMYK
OKLCHPro
Contrast & accessibility
On white
The quick fox
6.82:1
AA normal✓
AA large✓
AAA normal✕
On black
The quick fox
3.08:1
AA normal✕
AA large✓
AAA normal✕
Color harmonies
Complementary
Split-complementary
Shades & tints
Similar named colors
Frequently asked
What is the color #6C21ED?
#6C21ED is Indigo, a cool violet color. In RGB it is 108, 33, 237, and in HSL it is 262°, 85%, 53%.
Is #6C21ED a light or dark color?
#6C21ED has a relative luminance of 0.104, so it reads as a dark surface. Use light text on top of it for the best contrast.
What colors go well with #6C21ED?
Its complementary color is #A2ED21. For softer combinations, try the analogous or split-complementary harmonies shown above.