#665AC1

#665AC1

Color Values

HEX

#665AC1

RGB

102, 90, 193

HSL

247.0, 45.4%, 55.5%

HSV

247.0, 53.4%, 75.7%

CMYK

47.2%, 53.4%, 0.0%, 24.3%

OKLCH

0.5319 0.1554 285.1

Properties

Cool Dark Nearest: slateblue

Color Harmonies

Complementary

#665AC1

#B5C15A

Analogous

#5A82C1

#9A5AC1

#665AC1

Triadic

#665AC1

#C1665A

#5AC166

Split Complementary

#665AC1

#C19A5A

#82C15A

Tetradic

#665AC1

#C15A82

#B5C15A

#5AC19A

Color Blindness Simulation

Original

#665AC1

Protanopia

#6161A8

Deuteranopia

#6262A2

Tritanopia

#659490

Achromatopsia

#646464

CSS Usage

background-color: #665AC1;
color: #665AC1;
border-color: #665AC1;
Nearest Tailwind: Blue 800 #1E40AF

Tailwind Shades

50
#F5F4FA
100
#E8E6F4
200
#CFCBEC
300
#ACA6DE
400
#8076CB
500
#5346B9
600
#423894
700
#352D77
800
#2A235D
900
#211D44
950
#15122B

Contrast Checker

Text on white

5.53:1

AA Pass AAA Fail

Text on black

3.8:1

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