Indigo
#6D21C4 · Indigo
#6D21C4 is Indigo, a cool violet color. It has an RGB value of 109, 33, 196 and a relative luminance of 0.083, making it a dark surface.
Temperature
❄ Cool
Hue family
violet
Luminance
0.08
Conversions
HEX
RGB
HSL
HSV
CMYK
OKLCHPro
Contrast & accessibility
On white
The quick fox
7.88:1
AA normal✓
AA large✓
AAA normal✓
On black
The quick fox
2.66:1
AA normal✕
AA large✕
AAA normal✕
Color harmonies
Complementary
Split-complementary
Shades & tints
Similar named colors
Frequently asked
What is the color #6D21C4?
#6D21C4 is Indigo, a cool violet color. In RGB it is 109, 33, 196, and in HSL it is 268°, 71%, 45%.
Is #6D21C4 a light or dark color?
#6D21C4 has a relative luminance of 0.083, so it reads as a dark surface. Use light text on top of it for the best contrast.
What colors go well with #6D21C4?
Its complementary color is #78C421. For softer combinations, try the analogous or split-complementary harmonies shown above.