Indigo
#1818F7 · Indigo
#1818F7 is Indigo, a cool blue color. It has an RGB value of 24, 24, 247 and a relative luminance of 0.076, 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
8.36:1
AA normal✓
AA large✓
AAA normal✓
On black
The quick fox
2.51:1
AA normal✕
AA large✕
AAA normal✕
Color harmonies
Complementary
Split-complementary
Shades & tints
Similar named colors
Frequently asked
What is the color #1818F7?
#1818F7 is Indigo, a cool blue color. In RGB it is 24, 24, 247, and in HSL it is 240°, 93%, 53%.
Is #1818F7 a light or dark color?
#1818F7 has a relative luminance of 0.076, so it reads as a dark surface. Use light text on top of it for the best contrast.
What colors go well with #1818F7?
Its complementary color is #F7F718. For softer combinations, try the analogous or split-complementary harmonies shown above.