Indigo
#5151F5 · Indigo
#5151F5 is Indigo, a cool blue color. It has an RGB value of 81, 81, 245 and a relative luminance of 0.142, making it a dark surface.
Temperature
❄ Cool
Hue family
blue
Luminance
0.14
Conversions
HEX
RGB
HSL
HSV
CMYK
OKLCHPro
Contrast & accessibility
On white
The quick fox
5.46:1
AA normal✓
AA large✓
AAA normal✕
On black
The quick fox
3.85:1
AA normal✕
AA large✓
AAA normal✕
Color harmonies
Complementary
Split-complementary
Shades & tints
Similar named colors
Frequently asked
What is the color #5151F5?
#5151F5 is Indigo, a cool blue color. In RGB it is 81, 81, 245, and in HSL it is 240°, 89%, 64%.
Is #5151F5 a light or dark color?
#5151F5 has a relative luminance of 0.142, so it reads as a dark surface. Use light text on top of it for the best contrast.
What colors go well with #5151F5?
Its complementary color is #F5F551. For softer combinations, try the analogous or split-complementary harmonies shown above.