#663F71

#663F71

Color Values

HEX

#663F71

RGB

102, 63, 113

HSL

286.8, 28.4%, 34.5%

HSV

286.8, 44.2%, 44.3%

CMYK

9.7%, 44.2%, 0.0%, 55.7%

OKLCH

0.4338 0.0921 318.6

Properties

Cool Dark Nearest: RAL 4005 Blue Lilac

Color Harmonies

Complementary

#663F71

#4A713F

Analogous

#4D3F71

#713F63

#663F71

Triadic

#663F71

#71663F

#3F7166

Split Complementary

#663F71

#63713F

#3F714D

Tetradic

#663F71

#714D3F

#4A713F

#3F6371

Color Blindness Simulation

Original

#663F71

Protanopia

#555565

Deuteranopia

#575A62

Tritanopia

#645B59

Achromatopsia

#4B4B4B

CSS Usage

background-color: #663F71;
color: #663F71;
border-color: #663F71;
Nearest Tailwind: Fuchsia 950 #4A044E

Tailwind Shades

50
#F8F6F9
100
#F0E9F1
200
#E1D1E5
300
#CCB0D3
400
#B086BB
500
#945BA4
600
#764983
700
#5F3A69
800
#4A2E52
900
#37243D
950
#231726

Contrast Checker

Text on white

8.35:1

AA Pass AAA Pass

Text on black

2.51:1

AA Fail AAA Fail

Related Articles

Tutorials

Building a Color Picker Web Component from Scratch

Feb 20, 2026
Tutorials

Web Color Performance: Gradients, Shadows, and Filters

Feb 19, 2026
Tutorials

Tailwind CSS Colors: Complete Shade System Guide

Feb 19, 2026