#645DAA

#645DAA

Color Values

HEX

#645DAA

RGB

100, 93, 170

HSL

245.5, 31.2%, 51.6%

HSV

245.5, 45.3%, 66.7%

CMYK

41.2%, 45.3%, 0.0%, 33.3%

OKLCH

0.5211 0.1188 285.6

Properties

Cool Dark Nearest: Blue Violet

Color Harmonies

Complementary

#645DAA

#A3AA5D

Analogous

#5D7DAA

#8B5DAA

#645DAA

Triadic

#645DAA

#AA645D

#5DAA64

Split Complementary

#645DAA

#AA8B5D

#7DAA5D

Tetradic

#645DAA

#AA5D7D

#A3AA5D

#5DAA8B

Color Blindness Simulation

Original

#645DAA

Protanopia

#616197

Deuteranopia

#616293

Tritanopia

#648985

Achromatopsia

#646464

CSS Usage

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

Tailwind Shades

50
#F6F5F9
100
#E9E8F2
200
#D2D0E6
300
#B2AFD5
400
#8983BE
500
#5F58A7
600
#4C4686
700
#3D386B
800
#302C54
900
#25233E
950
#181627

Contrast Checker

Text on white

5.69:1

AA Pass AAA Fail

Text on black

3.69:1

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