#663F47

#663F47

Color Values

HEX

#663F47

RGB

102, 63, 71

HSL

347.7, 23.6%, 32.4%

HSV

347.7, 38.2%, 40.0%

CMYK

0.0%, 38.2%, 30.4%, 60.0%

OKLCH

0.4159 0.0556 6.4

Properties

Warm Dark Nearest: RAL 8015 Chestnut Brown

Color Harmonies

Complementary

#663F47

#3F665E

Analogous

#663F5B

#664B3F

#663F47

Triadic

#663F47

#47663F

#3F4766

Split Complementary

#663F47

#3F664B

#3F5B66

Tetradic

#663F47

#5B663F

#3F665E

#4B3F66

Color Blindness Simulation

Original

#663F47

Protanopia

#555545

Deuteranopia

#575A45

Tritanopia

#644443

Achromatopsia

#484848

CSS Usage

background-color: #663F47;
color: #663F47;
border-color: #663F47;
Nearest Tailwind: Stone 700 #44403C

Tailwind Shades

50
#F9F6F6
100
#F1EAEB
200
#E4D3D6
300
#D0B3B9
400
#B78A94
500
#9E616E
600
#7E4E58
700
#653E46
800
#4F3137
900
#3B262A
950
#25181B

Contrast Checker

Text on white

8.87:1

AA Pass AAA Pass

Text on black

2.37:1

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