Indigo
#1F5DEF · Indigo
#1F5DEF is Indigo, a cool blue color. It has an RGB value of 31, 93, 239 and a relative luminance of 0.144, 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
5.43:1
AA normal✓
AA large✓
AAA normal✕
On black
The quick fox
3.87:1
AA normal✕
AA large✓
AAA normal✕
Color harmonies
Complementary
Split-complementary
Shades & tints
Similar named colors
Frequently asked
What is the color #1F5DEF?
#1F5DEF is Indigo, a cool blue color. In RGB it is 31, 93, 239, and in HSL it is 222°, 87%, 53%.
Is #1F5DEF a light or dark color?
#1F5DEF has a relative luminance of 0.144, so it reads as a dark surface. Use light text on top of it for the best contrast.
What colors go well with #1F5DEF?
Its complementary color is #EFB11F. For softer combinations, try the analogous or split-complementary harmonies shown above.