#643F95#643F95

#643F95 is a mid, vivid violet. Relative luminance 0.084; OKLCH L 45.3% C 0.137 H 300.9°. Best body text is #FFFFFF at 7.82:1 contrast (WCAG AA passes).

Color values

HEX	#643F95
RGB	rgb(100, 63, 149)
HSL	hsl(266, 41%, 42%)
HSV	hsv(266, 58%, 58%)
CMYK	cmyk(32.9%, 57.7%, 0%, 41.6%)
CIE-LAB	lab(34.87, 34.70, -41.56)
CIE-LCH	lch(34.87, 54.14, 309.86°)
OKLab	oklab(45.32% 0.0704 -0.1175)
OKLCH	oklch(45.32% 0.137 300.9)
XYZ	xyz(12.4566, 8.4342, 29.3996)
Luminance	0.0843 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643F95 #70953F

analogous

#3F4595 #643F95 #8F3F95

triadic

#643F95 #95643F #3F9564

tetradic

#643F95 #953F45 #70953F #3F958F

square

#643F95 #953F45 #70953F #3F958F

split-complementary

#643F95 #958F3F #45953F

monochromatic

#2A1B3F #472D6A #643F95 #8259B9 #A284CB

Accessibility & contrast

On white

7.82

#643F95 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.69

#643F95 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643F95

7.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643F95	#FFFFFF	#000000	##FFFFFF
##643F95	1.00	7.82	2.69	7.82
#FFFFFF	7.82	1.00	21.00	1.00
#000000	2.69	21.00	1.00	21.00
##FFFFFF	7.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A5298

Deuteranopia (green-blind)

#285293

Tritanopia (blue-blind)

#5A5064

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #643f95;
/* rgb */ color: rgb(100, 63, 149);
/* oklch */ color: oklch(45.3% 0.137 300.9);

Tailwind

colors: {
  custom: {
    50: '#9375b5',
    500: '#643f95',
    950: '#000000',
  },
}

SCSS

$custom: #643f95;
$custom-light: #9375b5;
$custom-dark: #000000;

JSON

{
  "hex": "#643f95",
  "rgb": {
    "r": 100,
    "g": 63,
    "b": 149
  },
  "hsl": {
    "h": 265.814,
    "s": 40.566,
    "l": 41.569
  },
  "oklch": {
    "l": 0.45319,
    "c": 0.13704,
    "h": 300.9
  },
  "luminance": 0.08434
}

Semantic roles & 50–950 ramp

primary

#643F95

secondary

#9CB57B

accent

#D0579C

background

#F9F7FB

surface

#F2EDF6

border

#CCC8D0

text

#0D0811

muted

#7E7B80

Preview Lab

Preview with #643F95

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

Preview Lab → · Contrast checker → · Palette generator →