Emerald
#18A599 · Emerald
#18A599 is Emerald, a cool cyan color. It has an RGB value of 24, 165, 153 and a relative luminance of 0.294, making it a dark surface.
Temperature
❄ Cool
Hue family
cyan
Luminance
0.29
Conversions
HEX
RGB
HSL
HSV
CMYK
OKLCHPro
Contrast & accessibility
On white
The quick fox
3.05:1
AA normal✕
AA large✓
AAA normal✕
On black
The quick fox
6.88:1
AA normal✓
AA large✓
AAA normal✕
Color harmonies
Complementary
Split-complementary
Shades & tints
Similar named colors
Frequently asked
What is the color #18A599?
#18A599 is Emerald, a cool cyan color. In RGB it is 24, 165, 153, and in HSL it is 175°, 75%, 37%.
Is #18A599 a light or dark color?
#18A599 has a relative luminance of 0.294, so it reads as a dark surface. Use light text on top of it for the best contrast.
What colors go well with #18A599?
Its complementary color is #A51823. For softer combinations, try the analogous or split-complementary harmonies shown above.