Indigo
#1528F9 · Indigo
#1528F9 is Indigo, a cool blue color. It has an RGB value of 21, 40, 249 and a relative luminance of 0.085, making it a dark surface.
Temperature
❄ Cool
Hue family
blue
Luminance
0.09
Conversions
HEX
RGB
HSL
HSV
CMYK
OKLCHPro
Contrast & accessibility
On white
The quick fox
7.77:1
AA normal✓
AA large✓
AAA normal✓
On black
The quick fox
2.70:1
AA normal✕
AA large✕
AAA normal✕
Color harmonies
Complementary
Analogous
Split-complementary
Shades & tints
Similar named colors
Frequently asked
What is the color #1528F9?
#1528F9 is Indigo, a cool blue color. In RGB it is 21, 40, 249, and in HSL it is 235°, 95%, 53%.
Is #1528F9 a light or dark color?
#1528F9 has a relative luminance of 0.085, so it reads as a dark surface. Use light text on top of it for the best contrast.
What colors go well with #1528F9?
Its complementary color is #F9E615. For softer combinations, try the analogous or split-complementary harmonies shown above.