#645CB7

#645CB7

Color Values

HEX

#645CB7

RGB

100, 92, 183

HSL

245.3, 38.7%, 53.9%

HSV

245.3, 49.7%, 71.8%

CMYK

45.4%, 49.7%, 0.0%, 28.2%

OKLCH

0.5273 0.1389 284.6

Properties

Cool Dark Nearest: Blue Violet

Color Harmonies

Complementary

#645CB7

#AFB75C

Analogous

#5C81B7

#915CB7

#645CB7

Triadic

#645CB7

#B7645C

#5CB764

Split Complementary

#645CB7

#B7915C

#81B75C

Tetradic

#645CB7

#B75C81

#AFB75C

#5CB791

Color Blindness Simulation

Original

#645CB7

Protanopia

#6160A1

Deuteranopia

#61629C

Tritanopia

#64908C

Achromatopsia

#646464

CSS Usage

background-color: #645CB7;
color: #645CB7;
border-color: #645CB7;
Nearest Tailwind: Blue 900 #1E3A8A

Tailwind Shades

50
#F5F5FA
100
#E8E7F3
200
#D0CDE9
300
#AEAAD9
400
#837CC5
500
#574EB1
600
#453F8D
700
#383271
800
#2B2758
900
#232041
950
#161429

Contrast Checker

Text on white

5.59:1

AA Pass AAA Fail

Text on black

3.76:1

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