#40E390

#40E390

Color Values

HEX

#40E390

RGB

64, 227, 144

HSL

149.4, 74.4%, 57.1%

HSV

149.4, 71.8%, 89.0%

CMYK

71.8%, 0.0%, 36.6%, 11.0%

OKLCH

0.8136 0.1776 156.0

Properties

Cool Light Nearest: seagreen 2

Color Harmonies

Complementary

#40E390

#E34093

Analogous

#42E340

#40E3E1

#40E390

Triadic

#40E390

#9040E3

#E39040

Split Complementary

#40E390

#E140E3

#E34042

Tetradic

#40E390

#4042E3

#E34093

#E3E140

Color Blindness Simulation

Original

#40E390

Protanopia

#8788A4

Deuteranopia

#7D71A9

Tritanopia

#48B4B7

Achromatopsia

#BABABA

CSS Usage

background-color: #40E390;
color: #40E390;
border-color: #40E390;
Nearest Tailwind: Green 400 #4ADE80

Tailwind Shades

50
#F3FCF7
100
#E2F8ED
200
#C1F6DB
300
#94EFC1
400
#5AE79F
500
#21DE7E
600
#1AB264
700
#158E50
800
#106F3F
900
#105130
950
#0A331E

Contrast Checker

Text on white

1.67:1

AA Fail AAA Fail

Text on black

12.61:1

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