#40B371

#40B371

Color Values

HEX

#40B371

RGB

64, 179, 113

HSL

145.6, 47.3%, 47.6%

HSV

145.6, 64.2%, 70.2%

CMYK

64.2%, 0.0%, 36.9%, 29.8%

OKLCH

0.6852 0.1424 154.5

Properties

Cool Light Nearest: mediumseagreen

Color Harmonies

Complementary

#40B371

#B34082

Analogous

#48B340

#40B3AA

#40B371

Triadic

#40B371

#7140B3

#B37140

Split Complementary

#40B371

#AA40B3

#B34048

Tetradic

#40B371

#4048B3

#B34082

#B3AA40

Color Blindness Simulation

Original

#40B371

Protanopia

#727381

Deuteranopia

#6B6285

Tritanopia

#468E90

Achromatopsia

#969696

CSS Usage

background-color: #40B371;
color: #40B371;
border-color: #40B371;
Nearest Tailwind: Emerald 500 #10B981

Tailwind Shades

50
#F4FAF7
100
#E6F4EC
200
#CAECD9
300
#A5DFBE
400
#74CD9A
500
#43BC77
600
#36965F
700
#2B784C
800
#225E3B
900
#1C452D
950
#122C1D

Contrast Checker

Text on white

2.66:1

AA Fail AAA Fail

Text on black

7.9:1

AA Pass AAA Pass

Related Articles

Tutorials

Building a Color Picker Web Component from Scratch

Feb 20, 2026
Tutorials

Web Color Performance: Gradients, Shadows, and Filters

Feb 19, 2026
Tutorials

Tailwind CSS Colors: Complete Shade System Guide

Feb 19, 2026