#643C65#643C65

#643C65 is a dark, moderate purple. Relative luminance 0.069; OKLCH L 42.0% C 0.083 H 326.1°. Best body text is #FFFFFF at 8.84:1 contrast (WCAG AA passes).

Color values

HEX	#643C65
RGB	rgb(100, 60, 101)
HSL	hsl(299, 25%, 32%)
HSV	hsv(299, 41%, 40%)
CMYK	cmyk(1%, 40.6%, 0%, 60.4%)
CIE-LAB	lab(31.53, 24.85, -16.91)
CIE-LCH	lch(31.53, 30.06, 325.77°)
OKLab	oklab(41.98% 0.0685 -0.0461)
OKLCH	oklch(41.98% 0.083 326.1)
XYZ	xyz(9.2201, 6.8810, 13.1519)
Luminance	0.0688 (WCAG relative)
Temperature	neutral
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643C65 #3D653C

analogous

#503C65 #643C65 #653C52

triadic

#643C65 #65643C #3C6564

tetradic

#643C65 #65503C #3D653C #3C5265

square

#643C65 #65503C #3D653C #3C5265

split-complementary

#643C65 #52653C #3C6550

monochromatic

#180E18 #3E253F #643C65 #8A538B #A971AB

Accessibility & contrast

On white

8.84

#643C65 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.38

#643C65 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643C65

8.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643C65	#FFFFFF	#000000	##FFFFFF
##643C65	1.00	8.84	2.38	8.84
#FFFFFF	8.84	1.00	21.00	1.00
#000000	2.38	21.00	1.00	21.00
##FFFFFF	8.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#394766

Deuteranopia (green-blind)

#434C64

Tritanopia (blue-blind)

#66404C

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #643c65;
/* rgb */ color: rgb(100, 60, 101);
/* oklch */ color: oklch(42.0% 0.083 326.1);

Tailwind

colors: {
  custom: {
    50: '#917391',
    500: '#643c65',
    950: '#000000',
  },
}

SCSS

$custom: #643c65;
$custom-light: #917391;
$custom-dark: #000000;

JSON

{
  "hex": "#643c65",
  "rgb": {
    "r": 100,
    "g": 60,
    "b": 101
  },
  "hsl": {
    "h": 298.537,
    "s": 25.466,
    "l": 31.569
  },
  "oklch": {
    "l": 0.4198,
    "c": 0.08259,
    "h": 326.1
  },
  "luminance": 0.06881
}

Semantic roles & 50–950 ramp

primary

#643C65

secondary

#699568

accent

#C26668

background

#F9F7F8

surface

#F1EDF0

border

#CBC8CB

text

#0D080C

muted

#7E7B7D

Preview Lab

Preview with #643C65

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

Preview Lab → · Contrast checker → · Palette generator →