#644D4B

#644D4B

Color Values

HEX

#644D4B

RGB

100, 77, 75

HSL

4.8, 14.3%, 34.3%

HSV

4.8, 25.0%, 39.2%

CMYK

0.0%, 23.0%, 25.0%, 60.8%

OKLCH

0.4437 0.0314 24.2

Properties

Warm Dark Nearest: RAL 8028 Terra Brown

Color Harmonies

Complementary

#644D4B

#4B6264

Analogous

#644B55

#64594B

#644D4B

Triadic

#644D4B

#4B644D

#4D4B64

Split Complementary

#644D4B

#4B6459

#4B5564

Tetradic

#644D4B

#55644B

#4B6264

#594B64

Color Blindness Simulation

Original

#644D4B

Protanopia

#5A5A4B

Deuteranopia

#5B5D4C

Tritanopia

#634C4C

Achromatopsia

#525252

CSS Usage

background-color: #644D4B;
color: #644D4B;
border-color: #644D4B;
Nearest Tailwind: Stone 600 #57534E

Tailwind Shades

50
#F8F7F6
100
#EFEBEB
200
#E0D7D6
300
#CBBAB9
400
#AE9593
500
#92706D
600
#755A57
700
#5D4846
800
#493837
900
#372B2A
950
#231B1B

Contrast Checker

Text on white

7.76:1

AA Pass AAA Pass

Text on black

2.71:1

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