#21A261

#21A261

Color Values

HEX

#21A261

RGB

33, 162, 97

HSL

149.8, 66.2%, 38.2%

HSV

149.8, 79.6%, 63.5%

CMYK

79.6%, 0.0%, 40.1%, 36.5%

OKLCH

0.6299 0.1452 155.2

Properties

Cool Light Nearest: NCS S 1050-B90G Emerald

Color Harmonies

Complementary

#21A261

#A22162

Analogous

#21A221

#21A2A1

#21A261

Triadic

#21A261

#6121A2

#A26121

Split Complementary

#21A261

#A121A2

#A22121

Tetradic

#21A261

#2121A2

#A22162

#A2A121

Color Blindness Simulation

Original

#21A261

Protanopia

#595A71

Deuteranopia

#514874

Tritanopia

#277D80

Achromatopsia

#828282

CSS Usage

background-color: #21A261;
color: #21A261;
border-color: #21A261;
Nearest Tailwind: Emerald 500 #10B981

Tailwind Shades

50
#F3FCF7
100
#E3F7ED
200
#C4F3DB
300
#99EAC2
400
#62DFA0
500
#2BD47F
600
#22AA66
700
#1C8851
800
#166A3F
900
#144D30
950
#0C311E

Contrast Checker

Text on white

3.28:1

AA Fail AAA Fail

Text on black

6.41:1

AA Pass AAA Fail

Related Articles

Tutorials

CSS color-mix(): Blend Colors Natively in the Browser

Jan 26, 2026
Tutorials

Building a Color Picker Web Component from Scratch

Jan 21, 2026
Tutorials

Perceptual Color Spaces: Lab, LCH, Oklab, OKLCH

Jan 15, 2026