#643F4D#643F4D

#643F4D is a dark, muted pink. Relative luminance 0.068; OKLCH L 41.5% C 0.055 H 355.5°. Best body text is #FFFFFF at 8.90:1 contrast (WCAG AA passes).

Color values

HEX	#643F4D
RGB	rgb(100, 63, 77)
HSL	hsl(337, 23%, 32%)
HSV	hsv(337, 37%, 39%)
CMYK	cmyk(0%, 37%, 23%, 60.8%)
CIE-LAB	lab(31.35, 18.38, -1.75)
CIE-LCH	lch(31.35, 18.47, 354.56°)
OKLab	oklab(41.53% 0.0551 -0.0044)
OKLCH	oklch(41.53% 0.055 355.5)
XYZ	xyz(8.3727, 6.8007, 7.8914)
Luminance	0.0680 (WCAG relative)
Temperature	warm
Family	pink

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643F4D #3F6456

analogous

#643F60 #643F4D #64443F

triadic

#643F4D #4D643F #3F4D64

tetradic

#643F4D #60643F #3F6456 #443F64

square

#643F4D #60643F #3F6456 #443F64

split-complementary

#643F4D #3F6444 #3F6064

monochromatic

#191013 #3E2730 #643F4D #8A576A #A87589

Accessibility & contrast

On white

8.90

#643F4D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.36

#643F4D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643F4D

8.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643F4D	#FFFFFF	#000000	##FFFFFF
##643F4D	1.00	8.90	2.36	8.90
#FFFFFF	8.90	1.00	21.00	1.00
#000000	2.36	21.00	1.00	21.00
##FFFFFF	8.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#43464D

Deuteranopia (green-blind)

#4C4C4C

Tritanopia (blue-blind)

#6A3D44

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #643f4d;
/* rgb */ color: rgb(100, 63, 77);
/* oklch */ color: oklch(41.5% 0.055 355.5);

Tailwind

colors: {
  custom: {
    50: '#91747e',
    500: '#643f4d',
    950: '#000000',
  },
}

SCSS

$custom: #643f4d;
$custom-light: #91747e;
$custom-dark: #000000;

JSON

{
  "hex": "#643f4d",
  "rgb": {
    "r": 100,
    "g": 63,
    "b": 77
  },
  "hsl": {
    "h": 337.297,
    "s": 22.699,
    "l": 31.961
  },
  "oklch": {
    "l": 0.41532,
    "c": 0.0553,
    "h": 355.5
  },
  "luminance": 0.068
}

Semantic roles & 50–950 ramp

primary

#643F4D

secondary

#6B9484

accent

#BF9E69

background

#F9F7F7

surface

#F1EDEE

border

#CBC8C9

text

#0D080A

muted

#7E7B7C

Preview Lab

Preview with #643F4D

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

Preview Lab → · Contrast checker → · Palette generator →