#636C76

#636C76

Color Values

HEX

#636C76

RGB

99, 108, 118

HSL

211.6, 8.8%, 42.5%

HSV

211.6, 16.1%, 46.3%

CMYK

16.1%, 8.5%, 0.0%, 53.7%

OKLCH

0.5271 0.0192 251.0

Properties

Cool Dark Nearest: RAL 4012 Pearl Blackberry

Color Harmonies

Complementary

#636C76

#766D63

Analogous

#637576

#636376

#636C76

Triadic

#636C76

#76636C

#6C7663

Split Complementary

#636C76

#766363

#757663

Tetradic

#636C76

#766375

#766D63

#637663

Color Blindness Simulation

Original

#636C76

Protanopia

#676774

Deuteranopia

#666673

Tritanopia

#637271

Achromatopsia

#6B6B6B

CSS Usage

background-color: #636C76;
color: #636C76;
border-color: #636C76;
Nearest Tailwind: Gray 500 #6B7280

Tailwind Shades

50
#F7F7F8
100
#ECEDEE
200
#D8DBDE
300
#BCC2C7
400
#98A0A9
500
#747F8B
600
#5D666F
700
#4A5159
800
#3A3F45
900
#2D3034
950
#1C1E21

Contrast Checker

Text on white

5.33:1

AA Pass AAA Fail

Text on black

3.94:1

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