#643D95#643D95

#643D95 is a dark, vivid violet. Relative luminance 0.082; OKLCH L 45.0% C 0.140 H 301.4°. Best body text is #FFFFFF at 7.94:1 contrast (WCAG AA passes).

Color values

HEX	#643D95
RGB	rgb(100, 61, 149)
HSL	hsl(267, 42%, 41%)
HSV	hsv(267, 59%, 58%)
CMYK	cmyk(32.9%, 59.1%, 0%, 41.6%)
CIE-LAB	lab(34.43, 35.86, -42.27)
CIE-LCH	lch(34.43, 55.43, 310.31°)
OKLab	oklab(45% 0.0731 -0.1196)
OKLCH	oklch(45% 0.14 301.4)
XYZ	xyz(12.3478, 8.2167, 29.3634)
Luminance	0.0822 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643D95 #6E953D

analogous

#3D4295 #643D95 #903D95

triadic

#643D95 #95643D #3D9564

tetradic

#643D95 #953D42 #6E953D #3D9590

square

#643D95 #953D42 #6E953D #3D9590

split-complementary

#643D95 #95903D #42953D

monochromatic

#2A193E #472B6A #643D95 #8256BA #A281CB

Accessibility & contrast

On white

7.94

#643D95 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.64

#643D95 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643D95

7.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643D95	#FFFFFF	#000000	##FFFFFF
##643D95	1.00	7.94	2.64	7.94
#FFFFFF	7.94	1.00	21.00	1.00
#000000	2.64	21.00	1.00	21.00
##FFFFFF	7.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#145098

Deuteranopia (green-blind)

#255193

Tritanopia (blue-blind)

#5A4F63

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #643d95;
/* rgb */ color: rgb(100, 61, 149);
/* oklch */ color: oklch(45.0% 0.140 301.4);

Tailwind

colors: {
  custom: {
    50: '#9374b5',
    500: '#643d95',
    950: '#000000',
  },
}

SCSS

$custom: #643d95;
$custom-light: #9374b5;
$custom-dark: #000000;

JSON

{
  "hex": "#643d95",
  "rgb": {
    "r": 100,
    "g": 61,
    "b": 149
  },
  "hsl": {
    "h": 266.591,
    "s": 41.905,
    "l": 41.176
  },
  "oklch": {
    "l": 0.44995,
    "c": 0.14018,
    "h": 301.4
  },
  "luminance": 0.08217
}

Semantic roles & 50–950 ramp

primary

#643D95

secondary

#9AB578

accent

#D2569B

background

#F9F7FB

surface

#F2EDF6

border

#CCC8D0

text

#0D0811

muted

#7E7B80

Preview Lab

Preview with #643D95

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

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