#643378#643378

#643378 is a dark, vivid purple. Relative luminance 0.064; OKLCH L 41.5% C 0.121 H 315.2°. Best body text is #FFFFFF at 9.18:1 contrast (WCAG AA passes).

Color values

HEX	#643378
RGB	rgb(100, 51, 120)
HSL	hsl(283, 40%, 34%)
HSV	hsv(283, 58%, 47%)
CMYK	cmyk(16.7%, 57.5%, 0%, 52.9%)
CIE-LAB	lab(30.48, 34.34, -30.61)
CIE-LCH	lch(30.48, 46.01, 318.29°)
OKLab	oklab(41.52% 0.086 -0.0855)
OKLCH	oklch(41.52% 0.121 315.2)
XYZ	xyz(9.8290, 6.4333, 18.4897)
Luminance	0.0643 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643378 #477833

analogous

#413378 #643378 #783369

triadic

#643378 #786433 #337864

tetradic

#643378 #784133 #477833 #336978

square

#643378 #784133 #477833 #336978

split-complementary

#643378 #697833 #337841

monochromatic

#1C0E22 #40214D #643378 #8845A3 #A567BE

Accessibility & contrast

On white

9.18

#643378 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.29

#643378 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643378

9.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643378	#FFFFFF	#000000	##FFFFFF
##643378	1.00	9.18	2.29	9.18
#FFFFFF	9.18	1.00	21.00	1.00
#000000	2.29	21.00	1.00	21.00
##FFFFFF	9.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#22457A

Deuteranopia (green-blind)

#324976

Tritanopia (blue-blind)

#633E50

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #643378;
/* rgb */ color: rgb(100, 51, 120);
/* oklch */ color: oklch(41.5% 0.121 315.2);

Tailwind

colors: {
  custom: {
    50: '#926d9f',
    500: '#643378',
    950: '#000000',
  },
}

SCSS

$custom: #643378;
$custom-light: #926d9f;
$custom-dark: #000000;

JSON

{
  "hex": "#643378",
  "rgb": {
    "r": 100,
    "g": 51,
    "b": 120
  },
  "hsl": {
    "h": 282.609,
    "s": 40.351,
    "l": 33.529
  },
  "oklch": {
    "l": 0.41518,
    "c": 0.12124,
    "h": 315.2
  },
  "luminance": 0.06433
}

Semantic roles & 50–950 ramp

primary

#643378

secondary

#75A660

accent

#D0587B

background

#F9F6F9

surface

#F1ECF2

border

#CBC7CC

text

#0D070E

muted

#7E7A7E

Preview Lab

Preview with #643378

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

Preview Lab → · Contrast checker → · Palette generator →