#645BAF

#645BAF

Color Values

HEX

#645BAF

RGB

100, 91, 175

HSL

246.4, 34.4%, 52.2%

HSV

246.4, 48.0%, 68.6%

CMYK

42.9%, 48.0%, 0.0%, 31.4%

OKLCH

0.5203 0.129 285.9

Properties

Cool Dark Nearest: Blue Violet

Color Harmonies

Complementary

#645BAF

#A6AF5B

Analogous

#5B7CAF

#8E5BAF

#645BAF

Triadic

#645BAF

#AF645B

#5BAF64

Split Complementary

#645BAF

#AF8E5B

#7CAF5B

Tetradic

#645BAF

#AF5B7C

#A6AF5B

#5BAF8E

Color Blindness Simulation

Original

#645BAF

Protanopia

#60609B

Deuteranopia

#616196

Tritanopia

#648B87

Achromatopsia

#636363

CSS Usage

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

Tailwind Shades

50
#F6F5FA
100
#E9E8F2
200
#D2CFE8
300
#B1ADD7
400
#8780C1
500
#5D54AB
600
#4A4389
700
#3C366E
800
#2E2A56
900
#25213F
950
#171528

Contrast Checker

Text on white

5.74:1

AA Pass AAA Fail

Text on black

3.66:1

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