#643A55#643A55

#643A55 is a dark, moderate pink. Relative luminance 0.064; OKLCH L 40.9% C 0.071 H 341.7°. Best body text is #FFFFFF at 9.22:1 contrast (WCAG AA passes).

Color values

HEX	#643A55
RGB	rgb(100, 58, 85)
HSL	hsl(321, 27%, 31%)
HSV	hsv(321, 42%, 39%)
CMYK	cmyk(0%, 42%, 15%, 60.8%)
CIE-LAB	lab(30.38, 22.87, -8.38)
CIE-LCH	lch(30.38, 24.36, 339.89°)
OKLab	oklab(40.89% 0.0671 -0.0222)
OKLCH	oklch(40.89% 0.071 341.7)
XYZ	xyz(8.4083, 6.3918, 9.3834)
Luminance	0.0639 (WCAG relative)
Temperature	warm
Family	pink

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643A55 #3A6449

analogous

#5E3A64 #643A55 #643A40

triadic

#643A55 #55643A #3A5564

tetradic

#643A55 #645E3A #3A6449 #3A4064

square

#643A55 #645E3A #3A6449 #3A4064

split-complementary

#643A55 #40643A #3A645E

monochromatic

#170D13 #3D2434 #643A55 #8B5076 #AB6E95

Accessibility & contrast

On white

9.22

#643A55 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.28

#643A55 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643A55

9.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643A55	#FFFFFF	#000000	##FFFFFF
##643A55	1.00	9.22	2.28	9.22
#FFFFFF	9.22	1.00	21.00	1.00
#000000	2.28	21.00	1.00	21.00
##FFFFFF	9.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C4356

Deuteranopia (green-blind)

#474A54

Tritanopia (blue-blind)

#693A44

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #643a55;
/* rgb */ color: rgb(100, 58, 85);
/* oklch */ color: oklch(40.9% 0.071 341.7);

Tailwind

colors: {
  custom: {
    50: '#917184',
    500: '#643a55',
    950: '#000000',
  },
}

SCSS

$custom: #643a55;
$custom-light: #917184;
$custom-dark: #000000;

JSON

{
  "hex": "#643a55",
  "rgb": {
    "r": 100,
    "g": 58,
    "b": 85
  },
  "hsl": {
    "h": 321.429,
    "s": 26.582,
    "l": 30.98
  },
  "oklch": {
    "l": 0.4089,
    "c": 0.07073,
    "h": 341.7
  },
  "luminance": 0.06391
}

Semantic roles & 50–950 ramp

primary

#643A55

secondary

#669476

accent

#C38665

background

#F9F6F8

surface

#F1ECEF

border

#CBC7CA

text

#0D080B

muted

#7E7B7C

Preview Lab

Preview with #643A55

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

Preview Lab → · Contrast checker → · Palette generator →