#66C56D

#66C56D

Color Values

HEX

#66C56D

RGB

102, 197, 109

HSL

124.4, 45.0%, 58.6%

HSV

124.4, 48.2%, 77.3%

CMYK

48.2%, 0.0%, 44.7%, 22.7%

OKLCH

0.7439 0.1532 145.3

Properties

Cool Light Nearest: NCS S 0530-G10Y Spring Green

Color Harmonies

Complementary

#66C56D

#C566BE

Analogous

#8EC566

#66C59C

#66C56D

Triadic

#66C56D

#6D66C5

#C56D66

Split Complementary

#66C56D

#9C66C5

#C5668E

Tetradic

#66C56D

#668EC5

#C566BE

#C59C66

Color Blindness Simulation

Original

#66C56D

Protanopia

#8F9082

Deuteranopia

#8A8287

Tritanopia

#6B9397

Achromatopsia

#AAAAAA

CSS Usage

background-color: #66C56D;
color: #66C56D;
border-color: #66C56D;
Nearest Tailwind: Green 400 #4ADE80

Tailwind Shades

50
#F4FAF5
100
#E6F4E7
200
#CBEBCE
300
#A6DDAA
400
#76CB7C
500
#46B94F
600
#38943F
700
#2D7632
800
#235C27
900
#1D4420
950
#122B14

Contrast Checker

Text on white

2.15:1

AA Fail AAA Fail

Text on black

9.77:1

AA Pass AAA Pass

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