#643C4B#643C4B

#643C4B is a dark, muted pink. Relative luminance 0.064; OKLCH L 40.9% C 0.060 H 356.0°. Best body text is #FFFFFF at 9.17:1 contrast (WCAG AA passes).

Color values

HEX	#643C4B
RGB	rgb(100, 60, 75)
HSL	hsl(338, 25%, 31%)
HSV	hsv(338, 40%, 39%)
CMYK	cmyk(0%, 40%, 25%, 60.8%)
CIE-LAB	lab(30.52, 19.89, -1.67)
CIE-LCH	lch(30.52, 19.96, 355.19°)
OKLab	oklab(40.88% 0.0598 -0.0041)
OKLCH	oklch(40.88% 0.06 356)
XYZ	xyz(8.1416, 6.4496, 7.4713)
Luminance	0.0645 (WCAG relative)
Temperature	warm
Family	pink

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643C4B #3C6455

analogous

#643C5F #643C4B #64413C

triadic

#643C4B #4B643C #3C4B64

tetradic

#643C4B #5F643C #3C6455 #413C64

square

#643C4B #5F643C #3C6455 #413C64

split-complementary

#643C4B #3C6441 #3C5F64

monochromatic

#180E12 #3E252E #643C4B #8A5368 #AA7186

Accessibility & contrast

On white

9.17

#643C4B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.29

#643C4B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643C4B

9.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643C4B	#FFFFFF	#000000	##FFFFFF
##643C4B	1.00	9.17	2.29	9.17
#FFFFFF	9.17	1.00	21.00	1.00
#000000	2.29	21.00	1.00	21.00
##FFFFFF	9.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#41444C

Deuteranopia (green-blind)

#4B4B4A

Tritanopia (blue-blind)

#6A3A41

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #643c4b;
/* rgb */ color: rgb(100, 60, 75);
/* oklch */ color: oklch(40.9% 0.060 356.0);

Tailwind

colors: {
  custom: {
    50: '#91727d',
    500: '#643c4b',
    950: '#000000',
  },
}

SCSS

$custom: #643c4b;
$custom-light: #91727d;
$custom-dark: #000000;

JSON

{
  "hex": "#643c4b",
  "rgb": {
    "r": 100,
    "g": 60,
    "b": 75
  },
  "hsl": {
    "h": 337.5,
    "s": 25,
    "l": 31.373
  },
  "oklch": {
    "l": 0.40878,
    "c": 0.05993,
    "h": 356
  },
  "luminance": 0.06449
}

Semantic roles & 50–950 ramp

primary

#643C4B

secondary

#689483

accent

#C19F66

background

#F9F6F7

surface

#F1ECEE

border

#CBC7C9

text

#0D0809

muted

#7E7B7B

Preview Lab

Preview with #643C4B

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

Preview Lab → · Contrast checker → · Palette generator →