#643D93#643D93

#643D93 is a dark, vivid violet. Relative luminance 0.082; OKLCH L 44.9% C 0.138 H 302.1°. Best body text is #FFFFFF at 7.98:1 contrast (WCAG AA passes).

Color values

HEX	#643D93
RGB	rgb(100, 61, 147)
HSL	hsl(267, 41%, 41%)
HSV	hsv(267, 59%, 58%)
CMYK	cmyk(32%, 58.5%, 0%, 42.4%)
CIE-LAB	lab(34.30, 35.33, -41.26)
CIE-LCH	lch(34.30, 54.32, 310.58°)
OKLab	oklab(44.86% 0.0731 -0.1166)
OKLCH	oklch(44.86% 0.138 302.1)
XYZ	xyz(12.1895, 8.1534, 28.5297)
Luminance	0.0815 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643D93 #6C933D

analogous

#3D4193 #643D93 #8F3D93

triadic

#643D93 #93643D #3D9364

tetradic

#643D93 #933D41 #6C933D #3D938F

square

#643D93 #933D41 #6C933D #3D938F

split-complementary

#643D93 #938F3D #41933D

monochromatic

#29193C #472B68 #643D93 #8255B8 #A280CA

Accessibility & contrast

On white

7.98

#643D93 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.63

#643D93 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643D93

7.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643D93	#FFFFFF	#000000	##FFFFFF
##643D93	1.00	7.98	2.63	7.98
#FFFFFF	7.98	1.00	21.00	1.00
#000000	2.63	21.00	1.00	21.00
##FFFFFF	7.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#175096

Deuteranopia (green-blind)

#275091

Tritanopia (blue-blind)

#5B4E62

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #643d93;
/* rgb */ color: rgb(100, 61, 147);
/* oklch */ color: oklch(44.9% 0.138 302.1);

Tailwind

colors: {
  custom: {
    50: '#9374b3',
    500: '#643d93',
    950: '#000000',
  },
}

SCSS

$custom: #643d93;
$custom-light: #9374b3;
$custom-dark: #000000;

JSON

{
  "hex": "#643d93",
  "rgb": {
    "r": 100,
    "g": 61,
    "b": 147
  },
  "hsl": {
    "h": 267.209,
    "s": 41.346,
    "l": 40.784
  },
  "oklch": {
    "l": 0.44858,
    "c": 0.13765,
    "h": 302.1
  },
  "luminance": 0.08153
}

Semantic roles & 50–950 ramp

primary

#643D93

secondary

#99B477

accent

#D1579A

background

#F9F7FB

surface

#F2EDF6

border

#CCC8D0

text

#0D0811

muted

#7E7B80

Preview Lab

Preview with #643D93

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

Preview Lab → · Contrast checker → · Palette generator →