#643A92#643A92

#643A92 is a dark, vivid violet. Relative luminance 0.078; OKLCH L 44.3% C 0.141 H 303.1°. Best body text is #FFFFFF at 8.20:1 contrast (WCAG AA passes).

Color values

HEX	#643A92
RGB	rgb(100, 58, 146)
HSL	hsl(269, 43%, 40%)
HSV	hsv(269, 60%, 57%)
CMYK	cmyk(31.5%, 60.3%, 0%, 42.7%)
CIE-LAB	lab(33.59, 36.79, -41.79)
CIE-LCH	lch(33.59, 55.68, 311.36°)
OKLab	oklab(44.31% 0.077 -0.1182)
OKLCH	oklch(44.31% 0.141 303.1)
XYZ	xyz(11.9557, 7.8108, 28.0663)
Luminance	0.0781 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643A92 #68923A

analogous

#3A3C92 #643A92 #903A92

triadic

#643A92 #92643A #3A9264

tetradic

#643A92 #923A3C #68923A #3A9290

square

#643A92 #923A3C #68923A #3A9290

split-complementary

#643A92 #92903A #3C923A

monochromatic

#28173A #462966 #643A92 #8250B9 #A17CCB

Accessibility & contrast

On white

8.20

#643A92 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.56

#643A92 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643A92

8.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643A92	#FFFFFF	#000000	##FFFFFF
##643A92	1.00	8.20	2.56	8.20
#FFFFFF	8.20	1.00	21.00	1.00
#000000	2.56	21.00	1.00	21.00
##FFFFFF	8.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#104E95

Deuteranopia (green-blind)

#244F90

Tritanopia (blue-blind)

#5B4C60

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #643a92;
/* rgb */ color: rgb(100, 58, 146);
/* oklch */ color: oklch(44.3% 0.141 303.1);

Tailwind

colors: {
  custom: {
    50: '#9372b2',
    500: '#643a92',
    950: '#000000',
  },
}

SCSS

$custom: #643a92;
$custom-light: #9372b2;
$custom-dark: #000000;

JSON

{
  "hex": "#643a92",
  "rgb": {
    "r": 100,
    "g": 58,
    "b": 146
  },
  "hsl": {
    "h": 268.636,
    "s": 43.137,
    "l": 40
  },
  "oklch": {
    "l": 0.44314,
    "c": 0.14111,
    "h": 303.1
  },
  "luminance": 0.07811
}

Semantic roles & 50–950 ramp

primary

#643A92

secondary

#95B474

accent

#D35597

background

#F9F7FB

surface

#F2EDF6

border

#CCC8D0

text

#0D0811

muted

#7E7B80

Preview Lab

Preview with #643A92

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

Preview Lab → · Contrast checker → · Palette generator →