#66C565

#66C565

Color Values

HEX

#66C565

RGB

102, 197, 101

HSL

119.4, 45.3%, 58.4%

HSV

119.4, 48.7%, 77.3%

CMYK

48.2%, 0.0%, 48.7%, 22.7%

OKLCH

0.7426 0.1608 143.5

Properties

Cool Light Nearest: NCS S 0530-G10Y Spring Green

Color Harmonies

Complementary

#66C565

#C465C5

Analogous

#96C565

#65C594

#66C565

Triadic

#66C565

#6566C5

#C56566

Split Complementary

#66C565

#9465C5

#C56596

Tetradic

#66C565

#6596C5

#C465C5

#C59465

Color Blindness Simulation

Original

#66C565

Protanopia

#8F907C

Deuteranopia

#8A8282

Tritanopia

#6B8F93

Achromatopsia

#AAAAAA

CSS Usage

background-color: #66C565;
color: #66C565;
border-color: #66C565;
Nearest Tailwind: Green 500 #22C55E

Tailwind Shades

50
#F4FAF4
100
#E6F4E6
200
#CBEBCB
300
#A7DEA6
400
#77CB76
500
#47B946
600
#399438
700
#2D772D
800
#235D23
900
#1D441D
950
#122B12

Contrast Checker

Text on white

2.16:1

AA Fail AAA Fail

Text on black

9.74:1

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