Signal Cyan
#51C4F5 · Signal Cyan
#51C4F5 is Signal Cyan, a cool cyan color. It has an RGB value of 81, 196, 245 and a relative luminance of 0.478, making it a dark surface.
Temperature
❄ Cool
Hue family
cyan
Luminance
0.48
Conversions
HEX
RGB
HSL
HSV
CMYK
OKLCHPro
Contrast & accessibility
On white
The quick fox
1.99:1
AA normal✕
AA large✕
AAA normal✕
On black
The quick fox
10.56:1
AA normal✓
AA large✓
AAA normal✓
Color harmonies
Complementary
Split-complementary
Shades & tints
Similar named colors
Frequently asked
What is the color #51C4F5?
#51C4F5 is Signal Cyan, a cool cyan color. In RGB it is 81, 196, 245, and in HSL it is 198°, 89%, 64%.
Is #51C4F5 a light or dark color?
#51C4F5 has a relative luminance of 0.478, so it reads as a dark surface. Use light text on top of it for the best contrast.
What colors go well with #51C4F5?
Its complementary color is #F58351. For softer combinations, try the analogous or split-complementary harmonies shown above.