#40554B

#40554B

Color Values

HEX

#40554B

RGB

64, 85, 75

HSL

151.4, 14.1%, 29.2%

HSV

151.4, 24.7%, 33.3%

CMYK

24.7%, 0.0%, 11.8%, 66.7%

OKLCH

0.4288 0.0307 164.3

Properties

Cool Dark Nearest: RAL 7009 Green Grey

Color Harmonies

Complementary

#40554B

#55404A

Analogous

#405540

#405455

#40554B

Triadic

#40554B

#4B4055

#554B40

Split Complementary

#40554B

#554054

#554040

Tetradic

#40554B

#404055

#55404A

#545540

Color Blindness Simulation

Original

#40554B

Protanopia

#49494D

Deuteranopia

#48464E

Tritanopia

#414F50

Achromatopsia

#505050

CSS Usage

background-color: #40554B;
color: #40554B;
border-color: #40554B;
Nearest Tailwind: Neutral 600 #525252

Tailwind Shades

50
#F6F8F7
100
#EBEFED
200
#D6E0DC
300
#B9CAC2
400
#93AEA1
500
#6E9180
600
#587467
700
#465D52
800
#374940
900
#2A3731
950
#1B221F

Contrast Checker

Text on white

8.02:1

AA Pass AAA Pass

Text on black

2.62:1

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