#663F86

#663F86

Color Values

HEX

#663F86

RGB

102, 63, 134

HSL

273.0, 36.0%, 38.6%

HSV

273.0, 53.0%, 52.5%

CMYK

23.9%, 53.0%, 0.0%, 47.5%

OKLCH

0.4458 0.1184 307.7

Properties

Cool Dark Nearest: mediumpurple 4

Color Harmonies

Complementary

#663F86

#5F863F

Analogous

#433F86

#863F82

#663F86

Triadic

#663F86

#86663F

#3F8666

Split Complementary

#663F86

#82863F

#3F8643

Tetradic

#663F86

#86433F

#5F863F

#3F8286

Color Blindness Simulation

Original

#663F86

Protanopia

#555575

Deuteranopia

#575A71

Tritanopia

#646764

Achromatopsia

#4C4C4C

CSS Usage

background-color: #663F86;
color: #663F86;
border-color: #663F86;
Nearest Tailwind: Indigo 900 #312E81

Tailwind Shades

50
#F8F5FA
100
#EEE8F3
200
#DDCEE8
300
#C4ACD8
400
#A47FC3
500
#8452AD
600
#6A418B
700
#55346F
800
#422957
900
#322140
950
#201529

Contrast Checker

Text on white

8.01:1

AA Pass AAA Pass

Text on black

2.62:1

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