#643E42

#643E42

Color Values

HEX

#643E42

RGB

100, 62, 66

HSL

353.7, 23.5%, 31.8%

HSV

353.7, 38.0%, 39.2%

CMYK

0.0%, 38.0%, 34.0%, 60.8%

OKLCH

0.4097 0.0536 12.8

Properties

Warm Dark Nearest: RAL 8015 Chestnut Brown

Color Harmonies

Complementary

#643E42

#3E6460

Analogous

#643E55

#644D3E

#643E42

Triadic

#643E42

#42643E

#3E4264

Split Complementary

#643E42

#3E644D

#3E5564

Tetradic

#643E42

#55643E

#3E6460

#4D3E64

Color Blindness Simulation

Original

#643E42

Protanopia

#545341

Deuteranopia

#565941

Tritanopia

#624040

Achromatopsia

#464646

CSS Usage

background-color: #643E42;
color: #643E42;
border-color: #643E42;
Nearest Tailwind: Stone 700 #44403C

Tailwind Shades

50
#F9F6F6
100
#F1EAEA
200
#E4D3D5
300
#D0B3B6
400
#B78A8F
500
#9D6268
600
#7E4E53
700
#653E42
800
#4F3134
900
#3B2628
950
#251819

Contrast Checker

Text on white

9.09:1

AA Pass AAA Pass

Text on black

2.31:1

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