#643A86#643A86

#643A86 is a dark, vivid violet. Relative luminance 0.075; OKLCH L 43.5% C 0.126 H 307.5°. Best body text is #FFFFFF at 8.43:1 contrast (WCAG AA passes).

Color values

HEX	#643A86
RGB	rgb(100, 58, 134)
HSL	hsl(273, 40%, 38%)
HSV	hsv(273, 57%, 53%)
CMYK	cmyk(25.4%, 56.7%, 0%, 47.5%)
CIE-LAB	lab(32.83, 33.73, -35.63)
CIE-LCH	lch(32.83, 49.06, 313.43°)
OKLab	oklab(43.51% 0.0768 -0.1001)
OKLCH	oklch(43.51% 0.126 307.5)
XYZ	xyz(11.0708, 7.4568, 23.4057)
Luminance	0.0746 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643A86 #5C863A

analogous

#3E3A86 #643A86 #863A82

triadic

#643A86 #86643A #3A8664

tetradic

#643A86 #863E3A #5C863A #3A8286

square

#643A86 #863E3A #5C863A #3A8286

split-complementary

#643A86 #82863A #3A863E

monochromatic

#241531 #44285B #643A86 #844CB1 #A176C4

Accessibility & contrast

On white

8.43

#643A86 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#643A86 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643A86

8.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643A86	#FFFFFF	#000000	##FFFFFF
##643A86	1.00	8.43	2.49	8.43
#FFFFFF	8.43	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#214C89

Deuteranopia (green-blind)

#2F4E84

Tritanopia (blue-blind)

#5F485A

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #643a86;
/* rgb */ color: rgb(100, 58, 134);
/* oklch */ color: oklch(43.5% 0.126 307.5);

Tailwind

colors: {
  custom: {
    50: '#9272aa',
    500: '#643a86',
    950: '#000000',
  },
}

SCSS

$custom: #643a86;
$custom-light: #9272aa;
$custom-dark: #000000;

JSON

{
  "hex": "#643a86",
  "rgb": {
    "r": 100,
    "g": 58,
    "b": 134
  },
  "hsl": {
    "h": 273.158,
    "s": 39.583,
    "l": 37.647
  },
  "oklch": {
    "l": 0.43511,
    "c": 0.1262,
    "h": 307.5
  },
  "luminance": 0.07457
}

Semantic roles & 50–950 ramp

primary

#643A86

secondary

#8BAD6F

accent

#CF588E

background

#F9F7FA

surface

#F1EDF4

border

#CBC8CE

text

#0D0810

muted

#7E7B7F

Preview Lab

Preview with #643A86

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

Preview Lab → · Contrast checker → · Palette generator →