#665EC3

#665EC3

Color Values

HEX

#665EC3

RGB

102, 94, 195

HSL

244.8, 45.7%, 56.7%

HSV

244.8, 51.8%, 76.5%

CMYK

47.7%, 51.8%, 0.0%, 23.5%

OKLCH

0.5405 0.1525 283.6

Properties

Cool Dark Nearest: NCS S 1050-R90B Blue Violet

Color Harmonies

Complementary

#665EC3

#BBC35E

Analogous

#5E89C3

#995EC3

#665EC3

Triadic

#665EC3

#C3665E

#5EC366

Split Complementary

#665EC3

#C3995E

#89C35E

Tetradic

#665EC3

#C35E89

#BBC35E

#5EC399

Color Blindness Simulation

Original

#665EC3

Protanopia

#6362AB

Deuteranopia

#6364A5

Tritanopia

#669793

Achromatopsia

#676767

CSS Usage

background-color: #665EC3;
color: #665EC3;
border-color: #665EC3;
Nearest Tailwind: Blue 800 #1E40AF

Tailwind Shades

50
#F5F4FA
100
#E7E6F4
200
#CECBEC
300
#AAA6DE
400
#7C76CC
500
#4F45BA
600
#3F3795
700
#322C77
800
#27235D
900
#201D44
950
#14122B

Contrast Checker

Text on white

5.31:1

AA Pass AAA Fail

Text on black

3.95:1

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