#645B84

#645B84

Color Values

HEX

#645B84

RGB

100, 91, 132

HSL

253.2, 18.4%, 43.7%

HSV

253.2, 31.1%, 51.8%

CMYK

24.2%, 31.1%, 0.0%, 48.2%

OKLCH

0.4963 0.0652 294.0

Properties

Cool Dark Nearest: RAL 4011 Pearl Violet

Color Harmonies

Complementary

#645B84

#7B845B

Analogous

#5B6684

#785B84

#645B84

Triadic

#645B84

#84645B

#5B8464

Split Complementary

#645B84

#84785B

#66845B

Tetradic

#645B84

#845B66

#7B845B

#5B8478

Color Blindness Simulation

Original

#645B84

Protanopia

#60607A

Deuteranopia

#616178

Tritanopia

#647271

Achromatopsia

#606060

CSS Usage

background-color: #645B84;
color: #645B84;
border-color: #645B84;
Nearest Tailwind: Slate 600 #475569

Tailwind Shades

50
#F7F6F9
100
#ECEAF0
200
#D8D5E2
300
#BBB7CD
400
#978FB2
500
#726897
600
#5B5379
700
#494361
800
#39344B
900
#2C2838
950
#1C1A24

Contrast Checker

Text on white

6.23:1

AA Pass AAA Fail

Text on black

3.37:1

AA Fail AAA Fail

Related Articles

Tutorials

CSS color-mix(): Blend Colors Natively in the Browser

Jan 26, 2026
Tutorials

Building a Color Picker Web Component from Scratch

Jan 21, 2026
Tutorials

Perceptual Color Spaces: Lab, LCH, Oklab, OKLCH

Jan 15, 2026