#643F96#643F96

#643F96 is a mid, vivid violet. Relative luminance 0.085; OKLCH L 45.4% C 0.138 H 300.6°. Best body text is #FFFFFF at 7.80:1 contrast (WCAG AA passes).

Color values

HEX	#643F96
RGB	rgb(100, 63, 150)
HSL	hsl(266, 41%, 42%)
HSV	hsv(266, 58%, 59%)
CMYK	cmyk(33.3%, 58%, 0%, 41.2%)
CIE-LAB	lab(34.94, 34.97, -42.06)
CIE-LCH	lch(34.94, 54.70, 309.74°)
OKLab	oklab(45.39% 0.0705 -0.119)
OKLCH	oklch(45.39% 0.138 300.6)
XYZ	xyz(12.5368, 8.4663, 29.8219)
Luminance	0.0847 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643F96 #71963F

analogous

#3F4696 #643F96 #903F96

triadic

#643F96 #96643F #3F9664

tetradic

#643F96 #963F46 #71963F #3F9690

square

#643F96 #963F46 #71963F #3F9690

split-complementary

#643F96 #96903F #46963F

monochromatic

#2B1B40 #472D6B #643F96 #8259B9 #A284CB

Accessibility & contrast

On white

7.80

#643F96 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.69

#643F96 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643F96

7.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643F96	#FFFFFF	#000000	##FFFFFF
##643F96	1.00	7.80	2.69	7.80
#FFFFFF	7.80	1.00	21.00	1.00
#000000	2.69	21.00	1.00	21.00
##FFFFFF	7.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#185299

Deuteranopia (green-blind)

#275294

Tritanopia (blue-blind)

#5A5164

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #643f96;
/* rgb */ color: rgb(100, 63, 150);
/* oklch */ color: oklch(45.4% 0.138 300.6);

Tailwind

colors: {
  custom: {
    50: '#9375b5',
    500: '#643f96',
    950: '#000000',
  },
}

SCSS

$custom: #643f96;
$custom-light: #9375b5;
$custom-dark: #000000;

JSON

{
  "hex": "#643f96",
  "rgb": {
    "r": 100,
    "g": 63,
    "b": 150
  },
  "hsl": {
    "h": 265.517,
    "s": 40.845,
    "l": 41.765
  },
  "oklch": {
    "l": 0.45387,
    "c": 0.13832,
    "h": 300.6
  },
  "luminance": 0.08466
}

Semantic roles & 50–950 ramp

primary

#643F96

secondary

#9DB67B

accent

#D1579D

background

#F9F7FB

surface

#F2EDF6

border

#CCC8D0

text

#0D0811

muted

#7E7B80

Preview Lab

Preview with #643F96

Body copy rendered with the generated semantic roles for this colour.

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