#644C48

#644C48

Color Values

HEX

#644C48

RGB

100, 76, 72

HSL

8.6, 16.3%, 33.7%

HSV

8.6, 28.0%, 39.2%

CMYK

0.0%, 24.0%, 28.0%, 60.8%

OKLCH

0.4406 0.0334 29.3

Properties

Warm Dark Nearest: RAL 8028 Terra Brown

Color Harmonies

Complementary

#644C48

#486064

Analogous

#644852

#645A48

#644C48

Triadic

#644C48

#48644C

#4C4864

Split Complementary

#644C48

#48645A

#485264

Tetradic

#644C48

#526448

#486064

#5A4864

Color Blindness Simulation

Original

#644C48

Protanopia

#5A5949

Deuteranopia

#5B5D49

Tritanopia

#634A4A

Achromatopsia

#515151

CSS Usage

background-color: #644C48;
color: #644C48;
border-color: #644C48;
Nearest Tailwind: Stone 600 #57534E

Tailwind Shades

50
#F8F7F6
100
#F0EBEB
200
#E1D7D5
300
#CCBBB8
400
#B09691
500
#94716B
600
#775A55
700
#5F4844
800
#4A3835
900
#382B29
950
#231B1A

Contrast Checker

Text on white

7.87:1

AA Pass AAA Pass

Text on black

2.67:1

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