#645B4F

#645B4F

Color Values

HEX

#645B4F

RGB

100, 91, 79

HSL

34.3, 11.7%, 35.1%

HSV

34.3, 21.0%, 39.2%

CMYK

0.0%, 9.0%, 21.0%, 60.8%

OKLCH

0.4761 0.022 75.1

Properties

Warm Dark Nearest: RAL 1035 Pearl Beige

Color Harmonies

Complementary

#645B4F

#4F5864

Analogous

#64514F

#62644F

#645B4F

Triadic

#645B4F

#4F645B

#5B4F64

Split Complementary

#645B4F

#4F6264

#514F64

Tetradic

#645B4F

#4F6451

#4F5864

#644F62

Color Blindness Simulation

Original

#645B4F

Protanopia

#606052

Deuteranopia

#616153

Tritanopia

#645455

Achromatopsia

#5C5C5C

CSS Usage

background-color: #645B4F;
color: #645B4F;
border-color: #645B4F;
Nearest Tailwind: Stone 600 #57534E

Tailwind Shades

50
#F8F7F7
100
#EFEDEB
200
#DFDCD7
300
#C9C3BB
400
#ACA296
500
#8E8271
600
#72685A
700
#5B5348
800
#474138
900
#36312B
950
#221F1B

Contrast Checker

Text on white

6.66:1

AA Pass AAA Fail

Text on black

3.15:1

AA Fail AAA Fail

Related Articles

Brand Stories

Pantone Colors by Decade: The 2000s, 2010s, and 2020s Compared

Feb 01, 2026
Tutorials

Responsive Color: Adapting Colors for Different Screens

Jan 23, 2026
Tutorials

Color for Data Storytelling: Beyond Default Chart Colors

Jan 21, 2026