#643A95#643A95

#643A95 is a dark, vivid violet. Relative luminance 0.079; OKLCH L 44.5% C 0.145 H 302.1°. Best body text is #FFFFFF at 8.14:1 contrast (WCAG AA passes).

Color values

HEX	#643A95
RGB	rgb(100, 58, 149)
HSL	hsl(268, 44%, 41%)
HSV	hsv(268, 61%, 58%)
CMYK	cmyk(32.9%, 61.1%, 0%, 41.6%)
CIE-LAB	lab(33.78, 37.57, -43.30)
CIE-LCH	lch(33.78, 57.33, 310.95°)
OKLab	oklab(44.52% 0.077 -0.1227)
OKLCH	oklch(44.52% 0.145 302.1)
XYZ	xyz(12.1921, 7.9053, 29.3115)
Luminance	0.0790 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643A95 #6B953A

analogous

#3A3E95 #643A95 #913A95

triadic

#643A95 #95643A #3A9564

tetradic

#643A95 #953A3E #6B953A #3A9591

square

#643A95 #953A3E #6B953A #3A9591

split-complementary

#643A95 #95913A #3E953A

monochromatic

#29183D #462969 #643A95 #8251BB #A27DCC

Accessibility & contrast

On white

8.14

#643A95 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.58

#643A95 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643A95

8.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643A95	#FFFFFF	#000000	##FFFFFF
##643A95	1.00	8.14	2.58	8.14
#FFFFFF	8.14	1.00	21.00	1.00
#000000	2.58	21.00	1.00	21.00
##FFFFFF	8.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#084F98

Deuteranopia (green-blind)

#204F93

Tritanopia (blue-blind)

#5A4D62

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #643a95;
/* rgb */ color: rgb(100, 58, 149);
/* oklch */ color: oklch(44.5% 0.145 302.1);

Tailwind

colors: {
  custom: {
    50: '#9472b5',
    500: '#643a95',
    950: '#000000',
  },
}

SCSS

$custom: #643a95;
$custom-light: #9472b5;
$custom-dark: #000000;

JSON

{
  "hex": "#643a95",
  "rgb": {
    "r": 100,
    "g": 58,
    "b": 149
  },
  "hsl": {
    "h": 267.692,
    "s": 43.961,
    "l": 40.588
  },
  "oklch": {
    "l": 0.44523,
    "c": 0.14482,
    "h": 302.1
  },
  "luminance": 0.07905
}

Semantic roles & 50–950 ramp

primary

#643A95

secondary

#98B675

accent

#D45499

background

#F9F7FB

surface

#F2EDF6

border

#CCC8D0

text

#0D0811

muted

#7E7B80

Preview Lab

Preview with #643A95

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

Preview Lab → · Contrast checker → · Palette generator →