#643B57#643B57

#643B57 is a dark, moderate pink. Relative luminance 0.065; OKLCH L 41.2% C 0.070 H 339.7°. Best body text is #FFFFFF at 9.11:1 contrast (WCAG AA passes).

Color values

HEX	#643B57
RGB	rgb(100, 59, 87)
HSL	hsl(319, 26%, 31%)
HSV	hsv(319, 41%, 39%)
CMYK	cmyk(0%, 41%, 13%, 60.8%)
CIE-LAB	lab(30.70, 22.64, -9.18)
CIE-LCH	lch(30.70, 24.43, 337.92°)
OKLab	oklab(41.16% 0.0661 -0.0245)
OKLCH	oklch(41.16% 0.07 339.7)
XYZ	xyz(8.5398, 6.5259, 9.8248)
Luminance	0.0653 (WCAG relative)
Temperature	warm
Family	pink

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643B57 #3B6448

analogous

#5C3B64 #643B57 #643B42

triadic

#643B57 #57643B #3B5764

tetradic

#643B57 #645C3B #3B6448 #3B4264

square

#643B57 #645C3B #3B6448 #3B4264

split-complementary

#643B57 #42643B #3B645C

monochromatic

#170E14 #3E2436 #643B57 #8A5278 #AA6F97

Accessibility & contrast

On white

9.11

#643B57 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.31

#643B57 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643B57

9.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643B57	#FFFFFF	#000000	##FFFFFF
##643B57	1.00	9.11	2.31	9.11
#FFFFFF	9.11	1.00	21.00	1.00
#000000	2.31	21.00	1.00	21.00
##FFFFFF	9.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C4458

Deuteranopia (green-blind)

#474B56

Tritanopia (blue-blind)

#683C45

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #643b57;
/* rgb */ color: rgb(100, 59, 87);
/* oklch */ color: oklch(41.2% 0.070 339.7);

Tailwind

colors: {
  custom: {
    50: '#917286',
    500: '#643b57',
    950: '#000000',
  },
}

SCSS

$custom: #643b57;
$custom-light: #917286;
$custom-dark: #000000;

JSON

{
  "hex": "#643b57",
  "rgb": {
    "r": 100,
    "g": 59,
    "b": 87
  },
  "hsl": {
    "h": 319.024,
    "s": 25.786,
    "l": 31.176
  },
  "oklch": {
    "l": 0.41159,
    "c": 0.07044,
    "h": 339.7
  },
  "luminance": 0.06525
}

Semantic roles & 50–950 ramp

primary

#643B57

secondary

#679475

accent

#C28366

background

#F9F6F8

surface

#F1ECEF

border

#CBC7CA

text

#0D080B

muted

#7E7B7C

Preview Lab

Preview with #643B57

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

Preview Lab → · Contrast checker → · Palette generator →