#643E6A#643E6A

#643E6A is a dark, moderate purple. Relative luminance 0.072; OKLCH L 42.6% C 0.084 H 321.9°. Best body text is #FFFFFF at 8.61:1 contrast (WCAG AA passes).

Color values

HEX	#643E6A
RGB	rgb(100, 62, 106)
HSL	hsl(292, 26%, 33%)
HSV	hsv(292, 42%, 42%)
CMYK	cmyk(5.7%, 41.5%, 0%, 58.4%)
CIE-LAB	lab(32.25, 24.72, -18.99)
CIE-LCH	lch(32.25, 31.17, 322.47°)
OKLab	oklab(42.59% 0.0665 -0.052)
OKLCH	oklch(42.59% 0.084 321.9)
XYZ	xyz(9.5794, 7.1955, 14.5171)
Luminance	0.0720 (WCAG relative)
Temperature	neutral
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643E6A #446A3E

analogous

#4E3E6A #643E6A #6A3E5A

triadic

#643E6A #6A643E #3E6A64

tetradic

#643E6A #6A4E3E #446A3E #3E5A6A

square

#643E6A #6A4E3E #446A3E #3E5A6A

split-complementary

#643E6A #5A6A3E #3E6A4E

monochromatic

#1B111D #402743 #643E6A #885591 #A674AE

Accessibility & contrast

On white

8.61

#643E6A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.44

#643E6A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643E6A

8.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643E6A	#FFFFFF	#000000	##FFFFFF
##643E6A	1.00	8.61	2.44	8.61
#FFFFFF	8.61	1.00	21.00	1.00
#000000	2.44	21.00	1.00	21.00
##FFFFFF	8.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#39496C

Deuteranopia (green-blind)

#434D69

Tritanopia (blue-blind)

#65434F

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #643e6a;
/* rgb */ color: rgb(100, 62, 106);
/* oklch */ color: oklch(42.6% 0.084 321.9);

Tailwind

colors: {
  custom: {
    50: '#917494',
    500: '#643e6a',
    950: '#000000',
  },
}

SCSS

$custom: #643e6a;
$custom-light: #917494;
$custom-dark: #000000;

JSON

{
  "hex": "#643e6a",
  "rgb": {
    "r": 100,
    "g": 62,
    "b": 106
  },
  "hsl": {
    "h": 291.818,
    "s": 26.19,
    "l": 32.941
  },
  "oklch": {
    "l": 0.42592,
    "c": 0.0844,
    "h": 321.9
  },
  "luminance": 0.07195
}

Semantic roles & 50–950 ramp

primary

#643E6A

secondary

#71996B

accent

#C36572

background

#F9F7F9

surface

#F1EDF1

border

#CBC8CB

text

#0D080D

muted

#7E7B7E

Preview Lab

Preview with #643E6A

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

Preview Lab → · Contrast checker → · Palette generator →