Signal Cyan
#21D2ED · Signal Cyan
#21D2ED is Signal Cyan, a cool cyan color. It has an RGB value of 33, 210, 237 and a relative luminance of 0.525, making it a light surface.
Temperature
❄ Cool
Hue family
cyan
Luminance
0.53
Conversions
HEX
RGB
HSL
HSV
CMYK
OKLCHPro
Contrast & accessibility
On white
The quick fox
1.83:1
AA normal✕
AA large✕
AAA normal✕
On black
The quick fox
11.51:1
AA normal✓
AA large✓
AAA normal✓
Color harmonies
Shades & tints
Similar named colors
Frequently asked
What is the color #21D2ED?
#21D2ED is Signal Cyan, a cool cyan color. In RGB it is 33, 210, 237, and in HSL it is 188°, 85%, 53%.
Is #21D2ED a light or dark color?
#21D2ED has a relative luminance of 0.525, so it reads as a light surface. Use dark text on top of it for the best contrast.
What colors go well with #21D2ED?
Its complementary color is #ED3C21. For softer combinations, try the analogous or split-complementary harmonies shown above.