#645F1F

#645F1F

Color Values

HEX

#645F1F

RGB

100, 95, 31

HSL

55.7, 52.7%, 25.7%

HSV

55.7, 69.0%, 39.2%

CMYK

0.0%, 5.0%, 69.0%, 60.8%

OKLCH

0.4767 0.0842 104.8

Properties

Warm Dark Nearest: RAL 7008 Khaki Grey

Color Harmonies

Complementary

#645F1F

#1F2464

Analogous

#643D1F

#46641F

#645F1F

Triadic

#645F1F

#1F645F

#5F1F64

Split Complementary

#645F1F

#1F4664

#3D1F64

Tetradic

#645F1F

#1F643D

#1F2464

#641F46

Color Blindness Simulation

Original

#645F1F

Protanopia

#62622E

Deuteranopia

#626232

Tritanopia

#643B3D

Achromatopsia

#5B5B5B

CSS Usage

background-color: #645F1F;
color: #645F1F;
border-color: #645F1F;
Nearest Tailwind: Lime 900 #365314

Tailwind Shades

50
#FBFAF4
100
#F5F4E5
200
#EEEBC8
300
#E2DDA2
400
#D2CB6F
500
#C3B93C
600
#9C9430
700
#7D7627
800
#615D1E
900
#474419
950
#2D2B10

Contrast Checker

Text on white

6.57:1

AA Pass AAA Fail

Text on black

3.2:1

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