#42C381

#42C381

Color Values

HEX

#42C381

RGB

66, 195, 129

HSL

149.3, 51.8%, 51.2%

HSV

149.3, 66.2%, 76.5%

CMYK

66.2%, 0.0%, 33.8%, 23.5%

OKLCH

0.7301 0.1486 156.9

Properties

Cool Light Nearest: mediumseagreen

Color Harmonies

Complementary

#42C381

#C34284

Analogous

#44C342

#42C3C2

#42C381

Triadic

#42C381

#8142C3

#C38142

Split Complementary

#42C381

#C242C3

#C34244

Tetradic

#42C381

#4244C3

#C34284

#C3C242

Color Blindness Simulation

Original

#42C381

Protanopia

#7A7B91

Deuteranopia

#726995

Tritanopia

#489EA0

Achromatopsia

#A3A3A3

CSS Usage

background-color: #42C381;
color: #42C381;
border-color: #42C381;
Nearest Tailwind: Emerald 500 #10B981

Tailwind Shades

50
#F4FBF7
100
#E5F5ED
200
#C9EEDB
300
#A2E2C1
400
#70D2A0
500
#3DC27E
600
#319B65
700
#277C51
800
#1F613F
900
#1A4730
950
#102D1E

Contrast Checker

Text on white

2.24:1

AA Fail AAA Fail

Text on black

9.35:1

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