Indigo
#1F5AEF · Indigo
#1F5AEF is Indigo, a cool blue color. It has an RGB value of 31, 90, 239 and a relative luminance of 0.138, 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
5.57:1
AA normal✓
AA large✓
AAA normal✕
On black
The quick fox
3.77:1
AA normal✕
AA large✓
AAA normal✕
Color harmonies
Complementary
Split-complementary
Shades & tints
Similar named colors
Frequently asked
What is the color #1F5AEF?
#1F5AEF is Indigo, a cool blue color. In RGB it is 31, 90, 239, and in HSL it is 223°, 87%, 53%.
Is #1F5AEF a light or dark color?
#1F5AEF has a relative luminance of 0.138, so it reads as a dark surface. Use light text on top of it for the best contrast.
What colors go well with #1F5AEF?
Its complementary color is #EFB41F. For softer combinations, try the analogous or split-complementary harmonies shown above.