#643E92#643E92

#643E92 is a dark, vivid violet. Relative luminance 0.082; OKLCH L 45.0% C 0.135 H 302.1°. Best body text is #FFFFFF at 7.94:1 contrast (WCAG AA passes).

Color values

HEX	#643E92
RGB	rgb(100, 62, 146)
HSL	hsl(267, 40%, 41%)
HSV	hsv(267, 58%, 57%)
CMYK	cmyk(31.5%, 57.5%, 0%, 42.7%)
CIE-LAB	lab(34.46, 34.49, -40.39)
CIE-LCH	lch(34.46, 53.12, 310.49°)
OKLab	oklab(44.95% 0.0717 -0.1141)
OKLCH	oklch(44.95% 0.135 302.1)
XYZ	xyz(12.1653, 8.2299, 28.1362)
Luminance	0.0823 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643E92 #6C923E

analogous

#3E4292 #643E92 #8E3E92

triadic

#643E92 #92643E #3E9264

tetradic

#643E92 #923E42 #6C923E #3E928E

square

#643E92 #923E42 #6C923E #3E928E

split-complementary

#643E92 #928E3E #42923E

monochromatic

#291A3C #472C67 #643E92 #8256B7 #A281C9

Accessibility & contrast

On white

7.94

#643E92 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.65

#643E92 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643E92

7.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643E92	#FFFFFF	#000000	##FFFFFF
##643E92	1.00	7.94	2.65	7.94
#FFFFFF	7.94	1.00	21.00	1.00
#000000	2.65	21.00	1.00	21.00
##FFFFFF	7.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B5095

Deuteranopia (green-blind)

#2A5190

Tritanopia (blue-blind)

#5B4F62

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #643e92;
/* rgb */ color: rgb(100, 62, 146);
/* oklch */ color: oklch(45.0% 0.135 302.1);

Tailwind

colors: {
  custom: {
    50: '#9375b2',
    500: '#643e92',
    950: '#000000',
  },
}

SCSS

$custom: #643e92;
$custom-light: #9375b2;
$custom-dark: #000000;

JSON

{
  "hex": "#643e92",
  "rgb": {
    "r": 100,
    "g": 62,
    "b": 146
  },
  "hsl": {
    "h": 267.143,
    "s": 40.385,
    "l": 40.784
  },
  "oklch": {
    "l": 0.44952,
    "c": 0.13479,
    "h": 302.1
  },
  "luminance": 0.0823
}

Semantic roles & 50–950 ramp

primary

#643E92

secondary

#99B478

accent

#D0589A

background

#F9F7FB

surface

#F2EDF6

border

#CCC8D0

text

#0D0811

muted

#7E7B80

Preview Lab

Preview with #643E92

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

Preview Lab → · Contrast checker → · Palette generator →