Signal Cyan
#51D8F6 · Signal Cyan
#51D8F6 is Signal Cyan, a cool cyan color. It has an RGB value of 81, 216, 246 and a relative luminance of 0.575, making it a light surface.
Temperature
❄ Cool
Hue family
cyan
Luminance
0.58
Conversions
HEX
RGB
HSL
HSV
CMYK
OKLCHPro
Contrast & accessibility
On white
The quick fox
1.68:1
AA normal✕
AA large✕
AAA normal✕
On black
The quick fox
12.50:1
AA normal✓
AA large✓
AAA normal✓
Color harmonies
Shades & tints
Similar named colors
Frequently asked
What is the color #51D8F6?
#51D8F6 is Signal Cyan, a cool cyan color. In RGB it is 81, 216, 246, and in HSL it is 191°, 90%, 64%.
Is #51D8F6 a light or dark color?
#51D8F6 has a relative luminance of 0.575, so it reads as a light surface. Use dark text on top of it for the best contrast.
What colors go well with #51D8F6?
Its complementary color is #F66F51. For softer combinations, try the analogous or split-complementary harmonies shown above.