#643D65#643D65

#643D65 is a dark, moderate purple. Relative luminance 0.070; OKLCH L 42.2% C 0.081 H 326.0°. Best body text is #FFFFFF at 8.76:1 contrast (WCAG AA passes).

Color values

HEX	#643D65
RGB	rgb(100, 61, 101)
HSL	hsl(299, 25%, 32%)
HSV	hsv(299, 40%, 40%)
CMYK	cmyk(1%, 39.6%, 0%, 60.4%)
CIE-LAB	lab(31.78, 24.24, -16.53)
CIE-LCH	lch(31.78, 29.35, 325.71°)
OKLab	oklab(42.16% 0.0668 -0.045)
OKLCH	oklch(42.16% 0.081 326)
XYZ	xyz(9.2730, 6.9868, 13.1695)
Luminance	0.0699 (WCAG relative)
Temperature	neutral
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643D65 #3E653D

analogous

#503D65 #643D65 #653D52

triadic

#643D65 #65643D #3D6564

tetradic

#643D65 #65503D #3E653D #3D5265

square

#643D65 #65503D #3E653D #3D5265

split-complementary

#643D65 #52653D #3D6550

monochromatic

#180F19 #3E263F #643D65 #8A548B #A972AA

Accessibility & contrast

On white

8.76

#643D65 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.40

#643D65 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643D65

8.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643D65	#FFFFFF	#000000	##FFFFFF
##643D65	1.00	8.76	2.40	8.76
#FFFFFF	8.76	1.00	21.00	1.00
#000000	2.40	21.00	1.00	21.00
##FFFFFF	8.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A4866

Deuteranopia (green-blind)

#444D64

Tritanopia (blue-blind)

#66414C

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #643d65;
/* rgb */ color: rgb(100, 61, 101);
/* oklch */ color: oklch(42.2% 0.081 326.0);

Tailwind

colors: {
  custom: {
    50: '#917391',
    500: '#643d65',
    950: '#000000',
  },
}

SCSS

$custom: #643d65;
$custom-light: #917391;
$custom-dark: #000000;

JSON

{
  "hex": "#643d65",
  "rgb": {
    "r": 100,
    "g": 61,
    "b": 101
  },
  "hsl": {
    "h": 298.5,
    "s": 24.691,
    "l": 31.765
  },
  "oklch": {
    "l": 0.42163,
    "c": 0.0806,
    "h": 326
  },
  "luminance": 0.06986
}

Semantic roles & 50–950 ramp

primary

#643D65

secondary

#6A9569

accent

#C16769

background

#F9F7F8

surface

#F1EDF0

border

#CBC8CB

text

#0D080C

muted

#7E7B7D

Preview Lab

Preview with #643D65

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

Preview Lab → · Contrast checker → · Palette generator →