#637075

#637075

Color Values

HEX

#637075

RGB

99, 112, 117

HSL

196.7, 8.3%, 42.4%

HSV

196.7, 15.4%, 45.9%

CMYK

15.4%, 4.3%, 0.0%, 54.1%

OKLCH

0.536 0.0175 222.9

Properties

Cool Dark Nearest: dimgrey

Color Harmonies

Complementary

#637075

#756863

Analogous

#637571

#636775

#637075

Triadic

#637075

#756370

#707563

Split Complementary

#637075

#756367

#757163

Tetradic

#637075

#716375

#756863

#677563

Color Blindness Simulation

Original

#637075

Protanopia

#696974

Deuteranopia

#686774

Tritanopia

#647373

Achromatopsia

#6E6E6E

CSS Usage

background-color: #637075;
color: #637075;
border-color: #637075;
Nearest Tailwind: Zinc 500 #71717A

Tailwind Shades

50
#F7F8F8
100
#ECEEEE
200
#D8DDDE
300
#BDC4C7
400
#99A4A8
500
#75848A
600
#5E6A6E
700
#4B5558
800
#3A4245
900
#2D3234
950
#1C2021

Contrast Checker

Text on white

5.12:1

AA Pass AAA Fail

Text on black

4.11:1

AA Fail AAA Fail

Related Articles

Tutorials

CSS color-mix(): Blend Colors Natively in the Browser

Jan 26, 2026
Tutorials

Building a Color Picker Web Component from Scratch

Jan 21, 2026
Tutorials

Perceptual Color Spaces: Lab, LCH, Oklab, OKLCH

Jan 15, 2026