#643F45

#643F45

Color Values

HEX

#643F45

RGB

100, 63, 69

HSL

350.3, 22.7%, 32.0%

HSV

350.3, 37.0%, 39.2%

CMYK

0.0%, 37.0%, 31.0%, 60.8%

OKLCH

0.4126 0.0524 9.0

Properties

Warm Dark Nearest: RAL 8015 Chestnut Brown

Color Harmonies

Complementary

#643F45

#3F645E

Analogous

#643F58

#644C3F

#643F45

Triadic

#643F45

#45643F

#3F4564

Split Complementary

#643F45

#3F644C

#3F5864

Tetradic

#643F45

#58643F

#3F645E

#4C3F64

Color Blindness Simulation

Original

#643F45

Protanopia

#545444

Deuteranopia

#565943

Tritanopia

#624242

Achromatopsia

#474747

CSS Usage

background-color: #643F45;
color: #643F45;
border-color: #643F45;
Nearest Tailwind: Stone 700 #44403C

Tailwind Shades

50
#F9F6F6
100
#F1EAEB
200
#E3D3D6
300
#D0B4B8
400
#B68B92
500
#9C636C
600
#7D4F56
700
#643F45
800
#4E3136
900
#3A272A
950
#25181A

Contrast Checker

Text on white

8.98:1

AA Pass AAA Pass

Text on black

2.34:1

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