#643F55#643F55

#643F55 is a dark, moderate pink. Relative luminance 0.069; OKLCH L 41.8% C 0.061 H 343.6°. Best body text is #FFFFFF at 8.81:1 contrast (WCAG AA passes).

Color values

HEX	#643F55
RGB	rgb(100, 63, 85)
HSL	hsl(324, 23%, 32%)
HSV	hsv(324, 37%, 39%)
CMYK	cmyk(0%, 37%, 15%, 60.8%)
CIE-LAB	lab(31.63, 19.82, -6.50)
CIE-LCH	lch(31.63, 20.86, 341.83°)
OKLab	oklab(41.83% 0.0582 -0.0172)
OKLCH	oklch(41.83% 0.061 343.6)
XYZ	xyz(8.6728, 6.9207, 9.4716)
Luminance	0.0692 (WCAG relative)
Temperature	warm
Family	pink

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643F55 #3F644E

analogous

#613F64 #643F55 #643F43

triadic

#643F55 #55643F #3F5564

tetradic

#643F55 #64613F #3F644E #3F4364

square

#643F55 #64613F #3F644E #3F4364

split-complementary

#643F55 #43643F #3F6461

monochromatic

#191015 #3E2735 #643F55 #8A5775 #A87594

Accessibility & contrast

On white

8.81

#643F55 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.38

#643F55 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643F55

8.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643F55	#FFFFFF	#000000	##FFFFFF
##643F55	1.00	8.81	2.38	8.81
#FFFFFF	8.81	1.00	21.00	1.00
#000000	2.38	21.00	1.00	21.00
##FFFFFF	8.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#414756

Deuteranopia (green-blind)

#4A4D54

Tritanopia (blue-blind)

#693F47

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #643f55;
/* rgb */ color: rgb(100, 63, 85);
/* oklch */ color: oklch(41.8% 0.061 343.6);

Tailwind

colors: {
  custom: {
    50: '#917484',
    500: '#643f55',
    950: '#000000',
  },
}

SCSS

$custom: #643f55;
$custom-light: #917484;
$custom-dark: #000000;

JSON

{
  "hex": "#643f55",
  "rgb": {
    "r": 100,
    "g": 63,
    "b": 85
  },
  "hsl": {
    "h": 324.324,
    "s": 22.699,
    "l": 31.961
  },
  "oklch": {
    "l": 0.41834,
    "c": 0.06071,
    "h": 343.6
  },
  "luminance": 0.0692
}

Semantic roles & 50–950 ramp

primary

#643F55

secondary

#6B947C

accent

#BF8C69

background

#F8F7F8

surface

#F0EDEF

border

#CBC8CA

text

#0D080B

muted

#7D7B7C

Preview Lab

Preview with #643F55

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

Preview Lab → · Contrast checker → · Palette generator →