#643D55#643D55

#643D55 is a dark, moderate pink. Relative luminance 0.067; OKLCH L 41.5% C 0.065 H 342.7°. Best body text is #FFFFFF at 8.97:1 contrast (WCAG AA passes).

Color values

HEX	#643D55
RGB	rgb(100, 61, 85)
HSL	hsl(323, 24%, 32%)
HSV	hsv(323, 39%, 39%)
CMYK	cmyk(0%, 39%, 15%, 60.8%)
CIE-LAB	lab(31.12, 21.05, -7.26)
CIE-LCH	lch(31.12, 22.26, 340.97°)
OKLab	oklab(41.45% 0.0618 -0.0192)
OKLCH	oklch(41.45% 0.065 342.7)
XYZ	xyz(8.5640, 6.7032, 9.4353)
Luminance	0.0670 (WCAG relative)
Temperature	warm
Family	pink

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643D55 #3D644C

analogous

#603D64 #643D55 #643D42

triadic

#643D55 #55643D #3D5564

tetradic

#643D55 #64603D #3D644C #3D4264

square

#643D55 #64603D #3D644C #3D4264

split-complementary

#643D55 #42643D #3D6460

monochromatic

#180F14 #3E2635 #643D55 #8A5475 #A97294

Accessibility & contrast

On white

8.97

#643D55 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.34

#643D55 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643D55

8.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643D55	#FFFFFF	#000000	##FFFFFF
##643D55	1.00	8.97	2.34	8.97
#FFFFFF	8.97	1.00	21.00	1.00
#000000	2.34	21.00	1.00	21.00
##FFFFFF	8.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F4556

Deuteranopia (green-blind)

#494C54

Tritanopia (blue-blind)

#693D46

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #643d55;
/* rgb */ color: rgb(100, 61, 85);
/* oklch */ color: oklch(41.5% 0.065 342.7);

Tailwind

colors: {
  custom: {
    50: '#917384',
    500: '#643d55',
    950: '#000000',
  },
}

SCSS

$custom: #643d55;
$custom-light: #917384;
$custom-dark: #000000;

JSON

{
  "hex": "#643d55",
  "rgb": {
    "r": 100,
    "g": 61,
    "b": 85
  },
  "hsl": {
    "h": 323.077,
    "s": 24.224,
    "l": 31.569
  },
  "oklch": {
    "l": 0.41451,
    "c": 0.06472,
    "h": 342.7
  },
  "luminance": 0.06703
}

Semantic roles & 50–950 ramp

primary

#643D55

secondary

#699479

accent

#C18A67

background

#F9F7F8

surface

#F1EDEF

border

#CBC8CA

text

#0D080B

muted

#7E7B7C

Preview Lab

Preview with #643D55

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

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