#643C55#643C55

#643C55 is a dark, moderate pink. Relative luminance 0.066; OKLCH L 41.3% C 0.067 H 342.4°. Best body text is #FFFFFF at 9.05:1 contrast (WCAG AA passes).

Color values

HEX	#643C55
RGB	rgb(100, 60, 85)
HSL	hsl(323, 25%, 31%)
HSV	hsv(323, 40%, 39%)
CMYK	cmyk(0%, 40%, 15%, 60.8%)
CIE-LAB	lab(30.87, 21.66, -7.63)
CIE-LCH	lch(30.87, 22.96, 340.58°)
OKLab	oklab(41.26% 0.0636 -0.0202)
OKLCH	oklch(41.26% 0.067 342.4)
XYZ	xyz(8.5111, 6.5974, 9.4177)
Luminance	0.0660 (WCAG relative)
Temperature	warm
Family	pink

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643C55 #3C644B

analogous

#5F3C64 #643C55 #643C41

triadic

#643C55 #55643C #3C5564

tetradic

#643C55 #645F3C #3C644B #3C4164

square

#643C55 #645F3C #3C644B #3C4164

split-complementary

#643C55 #41643C #3C645F

monochromatic

#180E14 #3E2534 #643C55 #8A5376 #AA7194

Accessibility & contrast

On white

9.05

#643C55 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.32

#643C55 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643C55

9.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643C55	#FFFFFF	#000000	##FFFFFF
##643C55	1.00	9.05	2.32	9.05
#FFFFFF	9.05	1.00	21.00	1.00
#000000	2.32	21.00	1.00	21.00
##FFFFFF	9.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E4556

Deuteranopia (green-blind)

#484B54

Tritanopia (blue-blind)

#693C45

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #643c55;
/* rgb */ color: rgb(100, 60, 85);
/* oklch */ color: oklch(41.3% 0.067 342.4);

Tailwind

colors: {
  custom: {
    50: '#917284',
    500: '#643c55',
    950: '#000000',
  },
}

SCSS

$custom: #643c55;
$custom-light: #917284;
$custom-dark: #000000;

JSON

{
  "hex": "#643c55",
  "rgb": {
    "r": 100,
    "g": 60,
    "b": 85
  },
  "hsl": {
    "h": 322.5,
    "s": 25,
    "l": 31.373
  },
  "oklch": {
    "l": 0.41262,
    "c": 0.06673,
    "h": 342.4
  },
  "luminance": 0.06597
}

Semantic roles & 50–950 ramp

primary

#643C55

secondary

#689478

accent

#C18966

background

#F9F6F8

surface

#F1ECEF

border

#CBC7CA

text

#0D080B

muted

#7E7B7C

Preview Lab

Preview with #643C55

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

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