Indigo
#551ACB · Indigo
#551ACB is Indigo, a cool violet color. It has an RGB value of 85, 26, 203 and a relative luminance of 0.070, making it a dark surface.
Temperature
❄ Cool
Hue family
violet
Luminance
0.07
Conversions
HEX
RGB
HSL
HSV
CMYK
OKLCHPro
Contrast & accessibility
On white
The quick fox
8.76:1
AA normal✓
AA large✓
AAA normal✓
On black
The quick fox
2.40:1
AA normal✕
AA large✕
AAA normal✕
Color harmonies
Complementary
Split-complementary
Shades & tints
Similar named colors
Frequently asked
What is the color #551ACB?
#551ACB is Indigo, a cool violet color. In RGB it is 85, 26, 203, and in HSL it is 260°, 77%, 45%.
Is #551ACB a light or dark color?
#551ACB has a relative luminance of 0.070, so it reads as a dark surface. Use light text on top of it for the best contrast.
What colors go well with #551ACB?
Its complementary color is #90CB1A. For softer combinations, try the analogous or split-complementary harmonies shown above.