#643E55#643E55

#643E55 is a dark, moderate pink. Relative luminance 0.068; OKLCH L 41.6% C 0.063 H 343.1°. Best body text is #FFFFFF at 8.89:1 contrast (WCAG AA passes).

Color values

HEX	#643E55
RGB	rgb(100, 62, 85)
HSL	hsl(324, 23%, 32%)
HSV	hsv(324, 38%, 39%)
CMYK	cmyk(0%, 38%, 15%, 60.8%)
CIE-LAB	lab(31.37, 20.43, -6.88)
CIE-LCH	lch(31.37, 21.56, 341.38°)
OKLab	oklab(41.64% 0.06 -0.0182)
OKLCH	oklch(41.64% 0.063 343.1)
XYZ	xyz(8.6179, 6.8109, 9.4533)
Luminance	0.0681 (WCAG relative)
Temperature	warm
Family	pink

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643E55 #3E644D

analogous

#603E64 #643E55 #643E42

triadic

#643E55 #55643E #3E5564

tetradic

#643E55 #64603E #3E644D #3E4264

square

#643E55 #64603E #3E644D #3E4264

split-complementary

#643E55 #42643E #3E6460

monochromatic

#180F15 #3E2735 #643E55 #8A5575 #A97494

Accessibility & contrast

On white

8.89

#643E55 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.36

#643E55 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643E55

8.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643E55	#FFFFFF	#000000	##FFFFFF
##643E55	1.00	8.89	2.36	8.89
#FFFFFF	8.89	1.00	21.00	1.00
#000000	2.36	21.00	1.00	21.00
##FFFFFF	8.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#404656

Deuteranopia (green-blind)

#4A4C54

Tritanopia (blue-blind)

#693E46

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #643e55;
/* rgb */ color: rgb(100, 62, 85);
/* oklch */ color: oklch(41.6% 0.063 343.1);

Tailwind

colors: {
  custom: {
    50: '#917484',
    500: '#643e55',
    950: '#000000',
  },
}

SCSS

$custom: #643e55;
$custom-light: #917484;
$custom-dark: #000000;

JSON

{
  "hex": "#643e55",
  "rgb": {
    "r": 100,
    "g": 62,
    "b": 85
  },
  "hsl": {
    "h": 323.684,
    "s": 23.457,
    "l": 31.765
  },
  "oklch": {
    "l": 0.41642,
    "c": 0.06272,
    "h": 343.1
  },
  "luminance": 0.0681
}

Semantic roles & 50–950 ramp

primary

#643E55

secondary

#6A947B

accent

#C08B68

background

#F8F7F8

surface

#F0EDEF

border

#CBC8CA

text

#0D080B

muted

#7D7B7C

Preview Lab

Preview with #643E55

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

Preview Lab → · Contrast checker → · Palette generator →