#636F75

#636F75

Color Values

HEX

#636F75

RGB

99, 111, 117

HSL

200.0, 8.3%, 42.4%

HSV

200.0, 15.4%, 45.9%

CMYK

15.4%, 5.1%, 0.0%, 54.1%

OKLCH

0.5337 0.0173 229.2

Properties

Cool Dark Nearest: dimgrey

Color Harmonies

Complementary

#636F75

#756963

Analogous

#637572

#636675

#636F75

Triadic

#636F75

#75636F

#6F7563

Split Complementary

#636F75

#756366

#757263

Tetradic

#636F75

#726375

#756963

#667563

Color Blindness Simulation

Original

#636F75

Protanopia

#686874

Deuteranopia

#686773

Tritanopia

#647272

Achromatopsia

#6D6D6D

CSS Usage

background-color: #636F75;
color: #636F75;
border-color: #636F75;
Nearest Tailwind: Zinc 500 #71717A

Tailwind Shades

50
#F7F8F8
100
#ECEEEE
200
#D8DCDE
300
#BDC3C7
400
#99A3A8
500
#75838A
600
#5E696E
700
#4B5458
800
#3A4245
900
#2D3234
950
#1C1F21

Contrast Checker

Text on white

5.17:1

AA Pass AAA Fail

Text on black

4.06:1

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