#40574D

#40574D

Color Values

HEX

#40574D

RGB

64, 87, 77

HSL

153.9, 15.2%, 29.6%

HSV

153.9, 26.4%, 34.1%

CMYK

26.4%, 0.0%, 11.5%, 65.9%

OKLCH

0.4346 0.0326 166.4

Properties

Cool Dark Nearest: RAL 7009 Green Grey

Color Harmonies

Complementary

#40574D

#57404A

Analogous

#405741

#405557

#40574D

Triadic

#40574D

#4D4057

#574D40

Split Complementary

#40574D

#574055

#574140

Tetradic

#40574D

#414057

#57404A

#555740

Color Blindness Simulation

Original

#40574D

Protanopia

#4A4A4F

Deuteranopia

#494750

Tritanopia

#415152

Achromatopsia

#515151

CSS Usage

background-color: #40574D;
color: #40574D;
border-color: #40574D;
Nearest Tailwind: Neutral 600 #525252

Tailwind Shades

50
#F6F8F7
100
#EBEFED
200
#D6E1DC
300
#B8CBC3
400
#92AFA3
500
#6C9382
600
#567668
700
#455E53
800
#364941
900
#2A3731
950
#1A231F

Contrast Checker

Text on white

7.81:1

AA Pass AAA Pass

Text on black

2.69:1

AA Fail AAA Fail

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