Emerald
#21B20A · Emerald
#21B20A is Emerald, a balanced green color. It has an RGB value of 33, 178, 10 and a relative luminance of 0.322, making it a dark surface.
Temperature
◐ Balanced
Hue family
green
Luminance
0.32
Conversions
HEX
RGB
HSL
HSV
CMYK
OKLCHPro
Contrast & accessibility
On white
The quick fox
2.82:1
AA normal✕
AA large✕
AAA normal✕
On black
The quick fox
7.44:1
AA normal✓
AA large✓
AAA normal✓
Color harmonies
Complementary
Split-complementary
Shades & tints
Similar named colors
Frequently asked
What is the color #21B20A?
#21B20A is Emerald, a balanced green color. In RGB it is 33, 178, 10, and in HSL it is 112°, 89%, 37%.
Is #21B20A a light or dark color?
#21B20A has a relative luminance of 0.322, so it reads as a dark surface. Use light text on top of it for the best contrast.
What colors go well with #21B20A?
Its complementary color is #9C0AB2. For softer combinations, try the analogous or split-complementary harmonies shown above.