Indigo
#181FF7 · Indigo
#181FF7 is Indigo, a cool blue color. It has an RGB value of 24, 31, 247 and a relative luminance of 0.079, making it a dark surface.
Temperature
❄ Cool
Hue family
blue
Luminance
0.08
Conversions
HEX
RGB
HSL
HSV
CMYK
OKLCHPro
Contrast & accessibility
On white
The quick fox
8.15:1
AA normal✓
AA large✓
AAA normal✓
On black
The quick fox
2.58:1
AA normal✕
AA large✕
AAA normal✕
Color harmonies
Complementary
Split-complementary
Shades & tints
Similar named colors
Frequently asked
What is the color #181FF7?
#181FF7 is Indigo, a cool blue color. In RGB it is 24, 31, 247, and in HSL it is 238°, 93%, 53%.
Is #181FF7 a light or dark color?
#181FF7 has a relative luminance of 0.079, so it reads as a dark surface. Use light text on top of it for the best contrast.
What colors go well with #181FF7?
Its complementary color is #F7EF18. For softer combinations, try the analogous or split-complementary harmonies shown above.