#645F86

#645F86

Color Values

HEX

#645F86

RGB

100, 95, 134

HSL

247.7, 17.0%, 44.9%

HSV

247.7, 29.1%, 52.5%

CMYK

25.4%, 29.1%, 0.0%, 47.5%

OKLCH

0.5057 0.0615 289.9

Properties

Cool Dark Nearest: RAL 5014 Pigeon Blue

Color Harmonies

Complementary

#645F86

#81865F

Analogous

#5F6D86

#775F86

#645F86

Triadic

#645F86

#86645F

#5F8664

Split Complementary

#645F86

#86775F

#6D865F

Tetradic

#645F86

#865F6D

#81865F

#5F8677

Color Blindness Simulation

Original

#645F86

Protanopia

#62627D

Deuteranopia

#62627A

Tritanopia

#647573

Achromatopsia

#636363

CSS Usage

background-color: #645F86;
color: #645F86;
border-color: #645F86;
Nearest Tailwind: Slate 500 #64748B

Tailwind Shades

50
#F7F6F8
100
#EBEBF0
200
#D7D5E1
300
#BAB7CC
400
#9591B1
500
#6F6A95
600
#595577
700
#47445F
800
#38354B
900
#2B2938
950
#1B1A23

Contrast Checker

Text on white

5.96:1

AA Pass AAA Fail

Text on black

3.52:1

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