#665AC8

#665AC8

Color Values

HEX

#665AC8

RGB

102, 90, 200

HSL

246.5, 50.0%, 56.9%

HSV

246.5, 55.0%, 78.4%

CMYK

49.0%, 55.0%, 0.0%, 21.6%

OKLCH

0.5367 0.1649 284.3

Properties

Cool Dark Nearest: slateblue

Color Harmonies

Complementary

#665AC8

#BCC85A

Analogous

#5A85C8

#9D5AC8

#665AC8

Triadic

#665AC8

#C8665A

#5AC866

Split Complementary

#665AC8

#C89D5A

#85C85A

Tetradic

#665AC8

#C85A85

#BCC85A

#5AC89D

Color Blindness Simulation

Original

#665AC8

Protanopia

#6161AD

Deuteranopia

#6262A7

Tritanopia

#659894

Achromatopsia

#646464

CSS Usage

background-color: #665AC8;
color: #665AC8;
border-color: #665AC8;
Nearest Tailwind: Blue 800 #1E40AF

Tailwind Shades

50
#F5F4FB
100
#E7E6F5
200
#CDC9ED
300
#AAA3E0
400
#7C71D0
500
#4E40BF
600
#3E3399
700
#32297A
800
#272060
900
#1F1B46
950
#14112C

Contrast Checker

Text on white

5.44:1

AA Pass AAA Fail

Text on black

3.86:1

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