#665FD4

#665FD4

Color Values

HEX

#665FD4

RGB

102, 95, 212

HSL

243.6, 57.6%, 60.2%

HSV

243.6, 55.2%, 83.1%

CMYK

51.9%, 55.2%, 0.0%, 16.9%

OKLCH

0.5541 0.1743 281.8

Properties

Cool Dark Nearest: slateblue

Color Harmonies

Complementary

#665FD4

#CDD45F

Analogous

#5F92D4

#A15FD4

#665FD4

Triadic

#665FD4

#D4665F

#5FD466

Split Complementary

#665FD4

#D4A15F

#92D45F

Tetradic

#665FD4

#D45F92

#CDD45F

#5FD4A1

Color Blindness Simulation

Original

#665FD4

Protanopia

#6363B8

Deuteranopia

#6364B1

Tritanopia

#66A19C

Achromatopsia

#696969

CSS Usage

background-color: #665FD4;
color: #665FD4;
border-color: #665FD4;
Nearest Tailwind: Indigo 500 #6366F1

Tailwind Shades

50
#F4F4FB
100
#E5E4F6
200
#C9C7F0
300
#A39FE5
400
#716AD7
500
#3F36C9
600
#322BA1
700
#282381
800
#1F1B64
900
#1A174A
950
#110F2E

Contrast Checker

Text on white

5.06:1

AA Pass AAA Fail

Text on black

4.15:1

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