#644FA4

#644FA4

Color Values

HEX

#644FA4

RGB

100, 79, 164

HSL

254.8, 35.0%, 47.6%

HSV

254.8, 51.8%, 64.3%

CMYK

39.0%, 51.8%, 0.0%, 35.7%

OKLCH

0.4908 0.1319 292.2

Properties

Cool Dark Nearest: Royal Purple

Color Harmonies

Complementary

#644FA4

#8FA44F

Analogous

#4F64A4

#8E4FA4

#644FA4

Triadic

#644FA4

#A4644F

#4FA464

Split Complementary

#644FA4

#A48E4F

#64A44F

Tetradic

#644FA4

#A44F64

#8FA44F

#4FA48E

Color Blindness Simulation

Original

#644FA4

Protanopia

#5B5B8F

Deuteranopia

#5C5E8A

Tritanopia

#637F7C

Achromatopsia

#5A5A5A

CSS Usage

background-color: #644FA4;
color: #644FA4;
border-color: #644FA4;
Nearest Tailwind: Indigo 900 #312E81

Tailwind Shades

50
#F6F5FA
100
#EAE8F2
200
#D5CFE8
300
#B7ACD7
400
#9080C2
500
#6953AC
600
#54428A
700
#43356E
800
#342956
900
#292140
950
#1A1528

Contrast Checker

Text on white

6.57:1

AA Pass AAA Fail

Text on black

3.2:1

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