#643F65#643F65

#643F65 is a dark, moderate purple. Relative luminance 0.072; OKLCH L 42.5% C 0.077 H 325.9°. Best body text is #FFFFFF at 8.60:1 contrast (WCAG AA passes).

Color values

HEX	#643F65
RGB	rgb(100, 63, 101)
HSL	hsl(298, 23%, 32%)
HSV	hsv(298, 38%, 40%)
CMYK	cmyk(1%, 37.6%, 0%, 60.4%)
CIE-LAB	lab(32.27, 23.02, -15.78)
CIE-LCH	lch(32.27, 27.91, 325.58°)
OKLab	oklab(42.53% 0.0634 -0.0429)
OKLCH	oklch(42.53% 0.077 325.9)
XYZ	xyz(9.3818, 7.2043, 13.2058)
Luminance	0.0720 (WCAG relative)
Temperature	neutral
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643F65 #40653F

analogous

#513F65 #643F65 #653F53

triadic

#643F65 #65643F #3F6564

tetradic

#643F65 #65513F #40653F #3F5365

square

#643F65 #65513F #40653F #3F5365

split-complementary

#643F65 #53653F #3F6551

monochromatic

#19101A #3F273F #643F65 #89578B #A875A9

Accessibility & contrast

On white

8.60

#643F65 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.44

#643F65 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643F65

8.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643F65	#FFFFFF	#000000	##FFFFFF
##643F65	1.00	8.60	2.44	8.60
#FFFFFF	8.60	1.00	21.00	1.00
#000000	2.44	21.00	1.00	21.00
##FFFFFF	8.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C4966

Deuteranopia (green-blind)

#454E64

Tritanopia (blue-blind)

#66434D

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #643f65;
/* rgb */ color: rgb(100, 63, 101);
/* oklch */ color: oklch(42.5% 0.077 325.9);

Tailwind

colors: {
  custom: {
    50: '#917591',
    500: '#643f65',
    950: '#000000',
  },
}

SCSS

$custom: #643f65;
$custom-light: #917591;
$custom-dark: #000000;

JSON

{
  "hex": "#643f65",
  "rgb": {
    "r": 100,
    "g": 63,
    "b": 101
  },
  "hsl": {
    "h": 298.421,
    "s": 23.171,
    "l": 32.157
  },
  "oklch": {
    "l": 0.42533,
    "c": 0.07661,
    "h": 325.9
  },
  "luminance": 0.07204
}

Semantic roles & 50–950 ramp

primary

#643F65

secondary

#6C956B

accent

#C0686A

background

#F8F7F8

surface

#F0EDF0

border

#CBC8CB

text

#0D080C

muted

#7D7B7D

Preview Lab

Preview with #643F65

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

Preview Lab → · Contrast checker → · Palette generator →