Indigo
#0664E0 · Indigo
#0664E0 is Indigo, a cool blue color. It has an RGB value of 6, 100, 224 and a relative luminance of 0.145, making it a dark surface.
Temperature
❄ Cool
Hue family
blue
Luminance
0.15
Conversions
HEX
RGB
HSL
HSV
CMYK
OKLCHPro
Contrast & accessibility
On white
The quick fox
5.38:1
AA normal✓
AA large✓
AAA normal✕
On black
The quick fox
3.91:1
AA normal✕
AA large✓
AAA normal✕
Color harmonies
Complementary
Split-complementary
Shades & tints
Similar named colors
Frequently asked
What is the color #0664E0?
#0664E0 is Indigo, a cool blue color. In RGB it is 6, 100, 224, and in HSL it is 214°, 95%, 45%.
Is #0664E0 a light or dark color?
#0664E0 has a relative luminance of 0.145, so it reads as a dark surface. Use light text on top of it for the best contrast.
What colors go well with #0664E0?
Its complementary color is #E08106. For softer combinations, try the analogous or split-complementary harmonies shown above.