#663B3E

#663B3E

Color Values

HEX

#663B3E

RGB

102, 59, 62

HSL

355.8, 26.7%, 31.6%

HSV

355.8, 42.2%, 40.0%

CMYK

0.0%, 42.2%, 39.2%, 60.0%

OKLCH

0.4054 0.0609 15.6

Properties

Warm Dark Nearest: RAL 8015 Chestnut Brown

Color Harmonies

Complementary

#663B3E

#3B6663

Analogous

#663B54

#664E3B

#663B3E

Triadic

#663B3E

#3E663B

#3B3E66

Split Complementary

#663B3E

#3B664E

#3B5466

Tetradic

#663B3E

#54663B

#3B6663

#4E3B66

Color Blindness Simulation

Original

#663B3E

Protanopia

#53533D

Deuteranopia

#56593D

Tritanopia

#643D3D

Achromatopsia

#444444

CSS Usage

background-color: #663B3E;
color: #663B3E;
border-color: #663B3E;
Nearest Tailwind: Stone 700 #44403C

Tailwind Shades

50
#F9F6F6
100
#F1E9EA
200
#E5D2D3
300
#D2B1B4
400
#BA878B
500
#A25D62
600
#814B4F
700
#673C3F
800
#512F31
900
#3C2526
950
#261718

Contrast Checker

Text on white

9.29:1

AA Pass AAA Pass

Text on black

2.26:1

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