#643178#643178

#643178 is a dark, vivid purple. Relative luminance 0.063; OKLCH L 41.2% C 0.125 H 315.5°. Best body text is #FFFFFF at 9.32:1 contrast (WCAG AA passes).

Color values

HEX	#643178
RGB	rgb(100, 49, 120)
HSL	hsl(283, 42%, 33%)
HSV	hsv(283, 59%, 47%)
CMYK	cmyk(16.7%, 59.2%, 0%, 52.9%)
CIE-LAB	lab(30.06, 35.45, -31.27)
CIE-LCH	lch(30.06, 47.27, 318.58°)
OKLab	oklab(41.21% 0.0889 -0.0874)
OKLCH	oklch(41.21% 0.125 315.5)
XYZ	xyz(9.7435, 6.2623, 18.4612)
Luminance	0.0626 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643178 #457831

analogous

#403178 #643178 #783168

triadic

#643178 #786431 #317864

tetradic

#643178 #784031 #457831 #316878

square

#643178 #784031 #457831 #316878

split-complementary

#643178 #687831 #317840

monochromatic

#1C0E21 #401F4D #643178 #8843A3 #A664C0

Accessibility & contrast

On white

9.32

#643178 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#643178 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643178

9.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643178	#FFFFFF	#000000	##FFFFFF
##643178	1.00	9.32	2.25	9.32
#FFFFFF	9.32	1.00	21.00	1.00
#000000	2.25	21.00	1.00	21.00
##FFFFFF	9.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E447A

Deuteranopia (green-blind)

#314876

Tritanopia (blue-blind)

#633D4F

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #643178;
/* rgb */ color: rgb(100, 49, 120);
/* oklch */ color: oklch(41.2% 0.125 315.5);

Tailwind

colors: {
  custom: {
    50: '#926c9f',
    500: '#643178',
    950: '#000000',
  },
}

SCSS

$custom: #643178;
$custom-light: #926c9f;
$custom-dark: #000000;

JSON

{
  "hex": "#643178",
  "rgb": {
    "r": 100,
    "g": 49,
    "b": 120
  },
  "hsl": {
    "h": 283.099,
    "s": 42.012,
    "l": 33.137
  },
  "oklch": {
    "l": 0.41213,
    "c": 0.12463,
    "h": 315.5
  },
  "luminance": 0.06262
}

Semantic roles & 50–950 ramp

primary

#643178

secondary

#72A75E

accent

#D25679

background

#F9F6F9

surface

#F1EBF2

border

#CBC6CC

text

#0D070E

muted

#7E7A7E

Preview Lab

Preview with #643178

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

Preview Lab → · Contrast checker → · Palette generator →