#643D92#643D92

#643D92 is a dark, vivid violet. Relative luminance 0.081; OKLCH L 44.8% C 0.136 H 302.4°. Best body text is #FFFFFF at 8.00:1 contrast (WCAG AA passes).

Color values

HEX	#643D92
RGB	rgb(100, 61, 146)
HSL	hsl(268, 41%, 41%)
HSV	hsv(268, 58%, 57%)
CMYK	cmyk(31.5%, 58.2%, 0%, 42.7%)
CIE-LAB	lab(34.24, 35.07, -40.75)
CIE-LCH	lch(34.24, 53.76, 310.72°)
OKLab	oklab(44.79% 0.0731 -0.1152)
OKLCH	oklch(44.79% 0.136 302.4)
XYZ	xyz(12.1114, 8.1221, 28.1182)
Luminance	0.0812 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643D92 #6B923D

analogous

#3D4192 #643D92 #8E3D92

triadic

#643D92 #92643D #3D9264

tetradic

#643D92 #923D41 #6B923D #3D928E

square

#643D92 #923D41 #6B923D #3D928E

split-complementary

#643D92 #928E3D #41923D

monochromatic

#29193C #462B67 #643D92 #8254B8 #A280CA

Accessibility & contrast

On white

8.00

#643D92 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.62

#643D92 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643D92

8.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643D92	#FFFFFF	#000000	##FFFFFF
##643D92	1.00	8.00	2.62	8.00
#FFFFFF	8.00	1.00	21.00	1.00
#000000	2.62	21.00	1.00	21.00
##FFFFFF	8.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#195095

Deuteranopia (green-blind)

#285090

Tritanopia (blue-blind)

#5B4E61

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #643d92;
/* rgb */ color: rgb(100, 61, 146);
/* oklch */ color: oklch(44.8% 0.136 302.4);

Tailwind

colors: {
  custom: {
    50: '#9374b2',
    500: '#643d92',
    950: '#000000',
  },
}

SCSS

$custom: #643d92;
$custom-light: #9374b2;
$custom-dark: #000000;

JSON

{
  "hex": "#643d92",
  "rgb": {
    "r": 100,
    "g": 61,
    "b": 146
  },
  "hsl": {
    "h": 267.529,
    "s": 41.063,
    "l": 40.588
  },
  "oklch": {
    "l": 0.4479,
    "c": 0.13639,
    "h": 302.4
  },
  "luminance": 0.08122
}

Semantic roles & 50–950 ramp

primary

#643D92

secondary

#98B477

accent

#D15799

background

#F9F7FB

surface

#F2EDF6

border

#CCC8D0

text

#0D0811

muted

#7E7B80

Preview Lab

Preview with #643D92

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

Preview Lab → · Contrast checker → · Palette generator →