#631C9F

#631C9F

Color Values

HEX

#631C9F

RGB

99, 28, 159

HSL

272.5, 70.1%, 36.7%

HSV

272.5, 82.4%, 62.4%

CMYK

37.7%, 82.4%, 0.0%, 37.6%

OKLCH

0.416 0.1925 303.0

Properties

Cool Dark Nearest: purple 4

Color Harmonies

Complementary

#631C9F

#589F1C

Analogous

#211C9F

#9F1C9A

#631C9F

Triadic

#631C9F

#9F631C

#1C9F63

Split Complementary

#631C9F

#9A9F1C

#1C9F21

Tetradic

#631C9F

#9F211C

#589F1C

#1C9A9F

Color Blindness Simulation

Original

#631C9F

Protanopia

#44447F

Deuteranopia

#484E78

Tritanopia

#5F6661

Achromatopsia

#353535

CSS Usage

background-color: #631C9F;
color: #631C9F;
border-color: #631C9F;
Nearest Tailwind: Purple 800 #6B21A8

Tailwind Shades

50
#F8F3FC
100
#EEE3F8
200
#DDC2F4
300
#C597ED
400
#A65FE3
500
#8726D9
600
#6C1EAE
700
#56188B
800
#43136C
900
#33124F
950
#200B32

Contrast Checker

Text on white

9.56:1

AA Pass AAA Pass

Text on black

2.2:1

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