#643C57#643C57

#643C57 is a dark, moderate pink. Relative luminance 0.066; OKLCH L 41.3% C 0.068 H 339.9°. Best body text is #FFFFFF at 9.03:1 contrast (WCAG AA passes).

Color values

HEX	#643C57
RGB	rgb(100, 60, 87)
HSL	hsl(320, 25%, 31%)
HSV	hsv(320, 40%, 39%)
CMYK	cmyk(0%, 40%, 13%, 60.8%)
CIE-LAB	lab(30.95, 22.03, -8.81)
CIE-LCH	lch(30.95, 23.73, 338.20°)
OKLab	oklab(41.35% 0.0643 -0.0235)
OKLCH	oklch(41.35% 0.068 339.9)
XYZ	xyz(8.5917, 6.6296, 9.8421)
Luminance	0.0663 (WCAG relative)
Temperature	warm
Family	pink

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643C57 #3C6449

analogous

#5D3C64 #643C57 #643C43

triadic

#643C57 #57643C #3C5764

tetradic

#643C57 #645D3C #3C6449 #3C4364

square

#643C57 #645D3C #3C6449 #3C4364

split-complementary

#643C57 #43643C #3C645D

monochromatic

#180E14 #3E2536 #643C57 #8A5378 #AA7197

Accessibility & contrast

On white

9.03

#643C57 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.33

#643C57 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643C57

9.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643C57	#FFFFFF	#000000	##FFFFFF
##643C57	1.00	9.03	2.33	9.03
#FFFFFF	9.03	1.00	21.00	1.00
#000000	2.33	21.00	1.00	21.00
##FFFFFF	9.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E4558

Deuteranopia (green-blind)

#484B56

Tritanopia (blue-blind)

#683D46

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #643c57;
/* rgb */ color: rgb(100, 60, 87);
/* oklch */ color: oklch(41.3% 0.068 339.9);

Tailwind

colors: {
  custom: {
    50: '#917286',
    500: '#643c57',
    950: '#000000',
  },
}

SCSS

$custom: #643c57;
$custom-light: #917286;
$custom-dark: #000000;

JSON

{
  "hex": "#643c57",
  "rgb": {
    "r": 100,
    "g": 60,
    "b": 87
  },
  "hsl": {
    "h": 319.5,
    "s": 25,
    "l": 31.373
  },
  "oklch": {
    "l": 0.41345,
    "c": 0.06843,
    "h": 339.9
  },
  "luminance": 0.06629
}

Semantic roles & 50–950 ramp

primary

#643C57

secondary

#689476

accent

#C18466

background

#F9F6F8

surface

#F1ECEF

border

#CBC7CA

text

#0D080B

muted

#7E7B7C

Preview Lab

Preview with #643C57

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

Preview Lab → · Contrast checker → · Palette generator →