#643B4D#643B4D

#643B4D is a dark, moderate pink. Relative luminance 0.064; OKLCH L 40.8% C 0.063 H 352.4°. Best body text is #FFFFFF at 9.23:1 contrast (WCAG AA passes).

Color values

HEX	#643B4D
RGB	rgb(100, 59, 77)
HSL	hsl(334, 26%, 31%)
HSV	hsv(334, 41%, 39%)
CMYK	cmyk(0%, 41%, 23%, 60.8%)
CIE-LAB	lab(30.34, 20.84, -3.24)
CIE-LCH	lch(30.34, 21.09, 351.15°)
OKLab	oklab(40.76% 0.0624 -0.0083)
OKLCH	oklch(40.76% 0.063 352.4)
XYZ	xyz(8.1592, 6.3736, 7.8202)
Luminance	0.0637 (WCAG relative)
Temperature	warm
Family	pink

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643B4D #3B6452

analogous

#643B61 #643B4D #643D3B

triadic

#643B4D #4D643B #3B4D64

tetradic

#643B4D #61643B #3B6452 #3D3B64

square

#643B4D #61643B #3B6452 #3D3B64

split-complementary

#643B4D #3B643D #3B6164

monochromatic

#170E12 #3E242F #643B4D #8A526B #AA6F89

Accessibility & contrast

On white

9.23

#643B4D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#643B4D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643B4D

9.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643B4D	#FFFFFF	#000000	##FFFFFF
##643B4D	1.00	9.23	2.27	9.23
#FFFFFF	9.23	1.00	21.00	1.00
#000000	2.27	21.00	1.00	21.00
##FFFFFF	9.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F434E

Deuteranopia (green-blind)

#494A4C

Tritanopia (blue-blind)

#6A3A41

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #643b4d;
/* rgb */ color: rgb(100, 59, 77);
/* oklch */ color: oklch(40.8% 0.063 352.4);

Tailwind

colors: {
  custom: {
    50: '#91727e',
    500: '#643b4d',
    950: '#000000',
  },
}

SCSS

$custom: #643b4d;
$custom-light: #91727e;
$custom-dark: #000000;

JSON

{
  "hex": "#643b4d",
  "rgb": {
    "r": 100,
    "g": 59,
    "b": 77
  },
  "hsl": {
    "h": 333.659,
    "s": 25.786,
    "l": 31.176
  },
  "oklch": {
    "l": 0.4076,
    "c": 0.06296,
    "h": 352.4
  },
  "luminance": 0.06373
}

Semantic roles & 50–950 ramp

primary

#643B4D

secondary

#679480

accent

#C29A66

background

#F9F6F7

surface

#F1ECEE

border

#CBC7C9

text

#0D080A

muted

#7E7B7C

Preview Lab

Preview with #643B4D

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

Preview Lab → · Contrast checker → · Palette generator →