#643B56#643B56

#643B56 is a dark, moderate pink. Relative luminance 0.065; OKLCH L 41.1% C 0.070 H 340.8°. Best body text is #FFFFFF at 9.12:1 contrast (WCAG AA passes).

Color values

HEX	#643B56
RGB	rgb(100, 59, 86)
HSL	hsl(320, 26%, 31%)
HSV	hsv(320, 41%, 39%)
CMYK	cmyk(0%, 41%, 14%, 60.8%)
CIE-LAB	lab(30.66, 22.45, -8.60)
CIE-LCH	lch(30.66, 24.04, 339.05°)
OKLab	oklab(41.12% 0.0657 -0.0228)
OKLCH	oklch(41.12% 0.07 340.8)
XYZ	xyz(8.4992, 6.5096, 9.6111)
Luminance	0.0651 (WCAG relative)
Temperature	warm
Family	pink

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643B56 #3B6449

analogous

#5D3B64 #643B56 #643B41

triadic

#643B56 #56643B #3B5664

tetradic

#643B56 #645D3B #3B6449 #3B4164

square

#643B56 #645D3B #3B6449 #3B4164

split-complementary

#643B56 #41643B #3B645D

monochromatic

#170E14 #3E2435 #643B56 #8A5277 #AA6F96

Accessibility & contrast

On white

9.12

#643B56 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#643B56 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643B56

9.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643B56	#FFFFFF	#000000	##FFFFFF
##643B56	1.00	9.12	2.30	9.12
#FFFFFF	9.12	1.00	21.00	1.00
#000000	2.30	21.00	1.00	21.00
##FFFFFF	9.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D4457

Deuteranopia (green-blind)

#474B55

Tritanopia (blue-blind)

#693B45

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #643b56;
/* rgb */ color: rgb(100, 59, 86);
/* oklch */ color: oklch(41.1% 0.070 340.8);

Tailwind

colors: {
  custom: {
    50: '#917285',
    500: '#643b56',
    950: '#000000',
  },
}

SCSS

$custom: #643b56;
$custom-light: #917285;
$custom-dark: #000000;

JSON

{
  "hex": "#643b56",
  "rgb": {
    "r": 100,
    "g": 59,
    "b": 86
  },
  "hsl": {
    "h": 320.488,
    "s": 25.786,
    "l": 31.176
  },
  "oklch": {
    "l": 0.41117,
    "c": 0.06957,
    "h": 340.8
  },
  "luminance": 0.06509
}

Semantic roles & 50–950 ramp

primary

#643B56

secondary

#679476

accent

#C28566

background

#F9F6F8

surface

#F1ECEF

border

#CBC7CA

text

#0D080B

muted

#7E7B7C

Preview Lab

Preview with #643B56

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

Preview Lab → · Contrast checker → · Palette generator →