#40636B

#40636B

Color Values

HEX

#40636B

RGB

64, 99, 107

HSL

191.2, 25.1%, 33.5%

HSV

191.2, 40.2%, 42.0%

CMYK

40.2%, 7.5%, 0.0%, 58.0%

OKLCH

0.4762 0.0422 213.6

Properties

Cool Dark Nearest: RAL 5025 Pearl Gentian Blue

Color Harmonies

Complementary

#40636B

#6B4840

Analogous

#406B5D

#404D6B

#40636B

Triadic

#40636B

#6B4063

#636B40

Split Complementary

#40636B

#6B404D

#6B5D40

Tetradic

#40636B

#5D406B

#6B4840

#4D6B40

Color Blindness Simulation

Original

#40636B

Protanopia

#4F4F69

Deuteranopia

#4D4A69

Tritanopia

#426867

Achromatopsia

#5C5C5C

CSS Usage

background-color: #40636B;
color: #40636B;
border-color: #40636B;
Nearest Tailwind: Gray 600 #4B5563

Tailwind Shades

50
#F6F8F9
100
#E9F0F1
200
#D2E1E4
300
#B2CBD1
400
#89AFB8
500
#5F94A0
600
#4C7680
700
#3D5E66
800
#304A50
900
#26373B
950
#182326

Contrast Checker

Text on white

6.53:1

AA Pass AAA Fail

Text on black

3.22:1

AA Fail AAA Fail

Related Articles

Tutorials

Responsive Color: Adapting Colors for Different Screens

Jan 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

Jan 21, 2026
Tutorials

How to Choose Brand Colors: A Step-by-Step Guide

Jan 18, 2026