#643171#643171

#643171 is a dark, moderate purple. Relative luminance 0.061; OKLCH L 40.8% C 0.117 H 319.1°. Best body text is #FFFFFF at 9.46:1 contrast (WCAG AA passes).

Color values

HEX	#643171
RGB	rgb(100, 49, 113)
HSL	hsl(288, 40%, 32%)
HSV	hsv(288, 57%, 44%)
CMYK	cmyk(11.5%, 56.6%, 0%, 55.7%)
CIE-LAB	lab(29.66, 33.87, -27.48)
CIE-LCH	lch(29.66, 43.62, 320.95°)
OKLab	oklab(40.78% 0.0883 -0.0764)
OKLCH	oklch(40.78% 0.117 319.1)
XYZ	xyz(9.3341, 6.0986, 16.3050)
Luminance	0.0610 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643171 #3E7131

analogous

#443171 #643171 #71315E

triadic

#643171 #716431 #317164

tetradic

#643171 #714431 #3E7131 #315E71

square

#643171 #714431 #3E7131 #315E71

split-complementary

#643171 #5E7131 #317144

monochromatic

#180C1C #3E1E46 #643171 #8A449C #A962BB

Accessibility & contrast

On white

9.46

#643171 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.22

#643171 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643171

9.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643171	#FFFFFF	#000000	##FFFFFF
##643171	1.00	9.46	2.22	9.46
#FFFFFF	9.46	1.00	21.00	1.00
#000000	2.22	21.00	1.00	21.00
##FFFFFF	9.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#244273

Deuteranopia (green-blind)

#35486F

Tritanopia (blue-blind)

#643A4C

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #643171;
/* rgb */ color: rgb(100, 49, 113);
/* oklch */ color: oklch(40.8% 0.117 319.1);

Tailwind

colors: {
  custom: {
    50: '#926c9a',
    500: '#643171',
    950: '#000000',
  },
}

SCSS

$custom: #643171;
$custom-light: #926c9a;
$custom-dark: #000000;

JSON

{
  "hex": "#643171",
  "rgb": {
    "r": 100,
    "g": 49,
    "b": 113
  },
  "hsl": {
    "h": 287.813,
    "s": 39.506,
    "l": 31.765
  },
  "oklch": {
    "l": 0.40784,
    "c": 0.11674,
    "h": 319.1
  },
  "luminance": 0.06098
}

Semantic roles & 50–950 ramp

primary

#643171

secondary

#6AA25C

accent

#CF5871

background

#F9F6F9

surface

#F1EBF2

border

#CBC6CC

text

#0D070E

muted

#7E7A7E

Preview Lab

Preview with #643171

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

Preview Lab → · Contrast checker → · Palette generator →