#643E6D#643E6D

#643E6D is a dark, moderate purple. Relative luminance 0.073; OKLCH L 42.7% C 0.088 H 319.8°. Best body text is #FFFFFF at 8.57:1 contrast (WCAG AA passes).

Color values

HEX	#643E6D
RGB	rgb(100, 62, 109)
HSL	hsl(289, 27%, 34%)
HSV	hsv(289, 43%, 43%)
CMYK	cmyk(8.3%, 43.1%, 0%, 57.3%)
CIE-LAB	lab(32.39, 25.39, -20.67)
CIE-LCH	lch(32.39, 32.74, 320.85°)
OKLab	oklab(42.75% 0.0672 -0.0568)
OKLCH	oklch(42.75% 0.088 319.8)
XYZ	xyz(9.7381, 7.2590, 15.3532)
Luminance	0.0726 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643E6D #476D3E

analogous

#4C3E6D #643E6D #6D3E5E

triadic

#643E6D #6D643E #3E6D64

tetradic

#643E6D #6D4C3E #476D3E #3E5E6D

square

#643E6D #6D4C3E #476D3E #3E5E6D

split-complementary

#643E6D #5E6D3E #3E6D4C

monochromatic

#1C121F #402846 #643E6D #885494 #A575B0

Accessibility & contrast

On white

8.57

#643E6D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.45

#643E6D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643E6D

8.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643E6D	#FFFFFF	#000000	##FFFFFF
##643E6D	1.00	8.57	2.45	8.57
#FFFFFF	8.57	1.00	21.00	1.00
#000000	2.45	21.00	1.00	21.00
##FFFFFF	8.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#374A6F

Deuteranopia (green-blind)

#414E6C

Tritanopia (blue-blind)

#654450

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #643e6d;
/* rgb */ color: rgb(100, 62, 109);
/* oklch */ color: oklch(42.7% 0.088 319.8);

Tailwind

colors: {
  custom: {
    50: '#917497',
    500: '#643e6d',
    950: '#000000',
  },
}

SCSS

$custom: #643e6d;
$custom-light: #917497;
$custom-dark: #000000;

JSON

{
  "hex": "#643e6d",
  "rgb": {
    "r": 100,
    "g": 62,
    "b": 109
  },
  "hsl": {
    "h": 288.511,
    "s": 27.485,
    "l": 33.529
  },
  "oklch": {
    "l": 0.42745,
    "c": 0.08798,
    "h": 319.8
  },
  "luminance": 0.07259
}

Semantic roles & 50–950 ramp

primary

#643E6D

secondary

#759B6C

accent

#C46476

background

#F9F7F9

surface

#F1EDF2

border

#CBC8CC

text

#0D080D

muted

#7E7B7E

Preview Lab

Preview with #643E6D

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

Preview Lab → · Contrast checker → · Palette generator →