#42B588

#42B588

Color Values

HEX

#42B588

RGB

66, 181, 136

HSL

156.5, 46.6%, 48.4%

HSV

156.5, 63.5%, 71.0%

CMYK

63.5%, 0.0%, 24.9%, 29.0%

OKLCH

0.6961 0.1237 163.7

Properties

Cool Light Nearest: Mountain Meadow

Color Harmonies

Complementary

#42B588

#B5426F

Analogous

#42B54E

#42A8B5

#42B588

Triadic

#42B588

#8842B5

#B58842

Split Complementary

#42B588

#B542A8

#B54E42

Tetradic

#42B588

#4E42B5

#B5426F

#A8B542

Color Blindness Simulation

Original

#42B588

Protanopia

#747593

Deuteranopia

#6D6496

Tritanopia

#489B9D

Achromatopsia

#999999

CSS Usage

background-color: #42B588;
color: #42B588;
border-color: #42B588;
Nearest Tailwind: Emerald 500 #10B981

Tailwind Shades

50
#F4FAF8
100
#E6F4EF
200
#CBECDF
300
#A5DEC8
400
#75CDAA
500
#44BB8C
600
#369670
700
#2C785A
800
#225D46
900
#1C4535
950
#122B21

Contrast Checker

Text on white

2.56:1

AA Fail AAA Fail

Text on black

8.2:1

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