#643E5F#643E5F

#643E5F is a dark, moderate purple. Relative luminance 0.070; OKLCH L 42.1% C 0.072 H 331.6°. Best body text is #FFFFFF at 8.76:1 contrast (WCAG AA passes).

Color values

HEX	#643E5F
RGB	rgb(100, 62, 95)
HSL	hsl(308, 23%, 32%)
HSV	hsv(308, 38%, 39%)
CMYK	cmyk(0%, 38%, 5%, 60.8%)
CIE-LAB	lab(31.76, 22.38, -12.72)
CIE-LCH	lch(31.76, 25.75, 330.39°)
OKLab	oklab(42.07% 0.0634 -0.0343)
OKLCH	oklch(42.07% 0.072 331.6)
XYZ	xyz(9.0436, 6.9812, 11.6954)
Luminance	0.0698 (WCAG relative)
Temperature	neutral
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643E5F #3E6443

analogous

#563E64 #643E5F #643E4C

triadic

#643E5F #5F643E #3E5F64

tetradic

#643E5F #64563E #3E6443 #3E4C64

square

#643E5F #64563E #3E6443 #3E4C64

split-complementary

#643E5F #4C643E #3E6456

monochromatic

#180F17 #3E273B #643E5F #8A5583 #A974A2

Accessibility & contrast

On white

8.76

#643E5F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.40

#643E5F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643E5F

8.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643E5F	#FFFFFF	#000000	##FFFFFF
##643E5F	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)

#3D4760

Deuteranopia (green-blind)

#474D5E

Tritanopia (blue-blind)

#67404A

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #643e5f;
/* rgb */ color: rgb(100, 62, 95);
/* oklch */ color: oklch(42.1% 0.072 331.6);

Tailwind

colors: {
  custom: {
    50: '#91748c',
    500: '#643e5f',
    950: '#000000',
  },
}

SCSS

$custom: #643e5f;
$custom-light: #91748c;
$custom-dark: #000000;

JSON

{
  "hex": "#643e5f",
  "rgb": {
    "r": 100,
    "g": 62,
    "b": 95
  },
  "hsl": {
    "h": 307.895,
    "s": 23.457,
    "l": 31.765
  },
  "oklch": {
    "l": 0.42068,
    "c": 0.07208,
    "h": 331.6
  },
  "luminance": 0.06981
}

Semantic roles & 50–950 ramp

primary

#643E5F

secondary

#6A9470

accent

#C07368

background

#F8F7F8

surface

#F0EDF0

border

#CBC8CB

text

#0D080C

muted

#7D7B7D

Preview Lab

Preview with #643E5F

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

Preview Lab → · Contrast checker → · Palette generator →