Sky
#21A6ED · Sky
#21A6ED is Sky, a cool blue color. It has an RGB value of 33, 166, 237 and a relative luminance of 0.337, making it a dark surface.
Temperature
❄ Cool
Hue family
blue
Luminance
0.34
Conversions
HEX
RGB
HSL
HSV
CMYK
OKLCHPro
Contrast & accessibility
On white
The quick fox
2.71:1
AA normal✕
AA large✕
AAA normal✕
On black
The quick fox
7.74:1
AA normal✓
AA large✓
AAA normal✓
Color harmonies
Complementary
Split-complementary
Shades & tints
Similar named colors
Frequently asked
What is the color #21A6ED?
#21A6ED is Sky, a cool blue color. In RGB it is 33, 166, 237, and in HSL it is 201°, 85%, 53%.
Is #21A6ED a light or dark color?
#21A6ED has a relative luminance of 0.337, so it reads as a dark surface. Use light text on top of it for the best contrast.
What colors go well with #21A6ED?
Its complementary color is #ED6921. For softer combinations, try the analogous or split-complementary harmonies shown above.