#644040

#644040

Color Values

HEX

#644040

RGB

100, 64, 64

HSL

0.0, 22.0%, 32.2%

HSV

0.0, 36.0%, 39.2%

CMYK

0.0%, 36.0%, 36.0%, 60.8%

OKLCH

0.4131 0.0506 19.4

Properties

Warm Dark Nearest: RAL 8015 Chestnut Brown

Color Harmonies

Complementary

#644040

#406464

Analogous

#644052

#645240

#644040

Triadic

#644040

#406440

#404064

Split Complementary

#644040

#406452

#405264

Tetradic

#644040

#526440

#406464

#524064

Color Blindness Simulation

Original

#644040

Protanopia

#545440

Deuteranopia

#565940

Tritanopia

#624040

Achromatopsia

#484848

CSS Usage

background-color: #644040;
color: #644040;
border-color: #644040;
Nearest Tailwind: Stone 700 #44403C

Tailwind Shades

50
#F9F6F6
100
#F0EAEA
200
#E3D3D3
300
#CFB4B4
400
#B58C8C
500
#9C6363
600
#7C5050
700
#644040
800
#4E3232
900
#3A2727
950
#251919

Contrast Checker

Text on white

8.94:1

AA Pass AAA Pass

Text on black

2.35:1

AA Fail AAA Fail

Related Articles

Color Questions

What Is Pantone? The Universal Color Language

Feb 20, 2026
Color Questions

What Is Metamerism? Why Colors Look Different Under Different Lights

Feb 20, 2026
Color Questions

What Is Luminance? Brightness in Color Science

Feb 20, 2026