Indigo
#170FFF · Indigo
#170FFF is Indigo, a cool blue color. It has an RGB value of 23, 15, 255 and a relative luminance of 0.077, 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
8.24:1
AA normal✓
AA large✓
AAA normal✓
On black
The quick fox
2.55:1
AA normal✕
AA large✕
AAA normal✕
Color harmonies
Complementary
Split-complementary
Shades & tints
Similar named colors
Frequently asked
What is the color #170FFF?
#170FFF is Indigo, a cool blue color. In RGB it is 23, 15, 255, and in HSL it is 242°, 100%, 53%.
Is #170FFF a light or dark color?
#170FFF has a relative luminance of 0.077, so it reads as a dark surface. Use light text on top of it for the best contrast.
What colors go well with #170FFF?
Its complementary color is #F7FF0F. For softer combinations, try the analogous or split-complementary harmonies shown above.