#21CF78

#21CF78

Color Values

HEX

#21CF78

RGB

33, 207, 120

HSL

150.0, 72.5%, 47.1%

HSV

150.0, 84.1%, 81.2%

CMYK

84.1%, 0.0%, 42.0%, 18.8%

OKLCH

0.753 0.1816 154.3

Properties

Cool Light Nearest: seagreen 3

Color Harmonies

Complementary

#21CF78

#CF2178

Analogous

#21CF21

#21CFCF

#21CF78

Triadic

#21CF78

#7821CF

#CF7821

Split Complementary

#21CF78

#CF21CF

#CF2121

Tetradic

#21CF78

#2121CF

#CF2178

#CFCF21

Color Blindness Simulation

Original

#21CF78

Protanopia

#6C6E8D

Deuteranopia

#625592

Tritanopia

#2A9EA1

Achromatopsia

#A4A4A4

CSS Usage

background-color: #21CF78;
color: #21CF78;
border-color: #21CF78;
Nearest Tailwind: Green 400 #4ADE80

Tailwind Shades

50
#F3FCF7
100
#E2F8ED
200
#C1F5DB
300
#95EEC2
400
#5CE5A1
500
#23DC80
600
#1CB066
700
#168D52
800
#126E40
900
#115030
950
#0B331F

Contrast Checker

Text on white

2.05:1

AA Fail AAA Fail

Text on black

10.26:1

AA Pass AAA Pass

Related Articles

Tutorials

Building a Color Picker Web Component from Scratch

Feb 20, 2026
Tutorials

Web Color Performance: Gradients, Shadows, and Filters

Feb 19, 2026
Tutorials

Tailwind CSS Colors: Complete Shade System Guide

Feb 19, 2026