#643E64#643E64

#643E64 is a dark, moderate purple. Relative luminance 0.071; OKLCH L 42.3% C 0.077 H 326.8°. Best body text is #FFFFFF at 8.70:1 contrast (WCAG AA passes).

Color values

HEX	#643E64
RGB	rgb(100, 62, 100)
HSL	hsl(300, 23%, 32%)
HSV	hsv(300, 38%, 39%)
CMYK	cmyk(0%, 38%, 0%, 60.8%)
CIE-LAB	lab(31.98, 23.42, -15.59)
CIE-LCH	lch(31.98, 28.14, 326.36°)
OKLab	oklab(42.3% 0.0649 -0.0424)
OKLCH	oklch(42.3% 0.077 326.8)
XYZ	xyz(9.2782, 7.0751, 12.9310)
Luminance	0.0707 (WCAG relative)
Temperature	neutral
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643E64 #3E643E

analogous

#513E64 #643E64 #643E51

triadic

#643E64 #64643E #3E6464

tetradic

#643E64 #64513E #3E643E #3E5164

square

#643E64 #64513E #3E643E #3E5164

split-complementary

#643E64 #51643E #3E6451

monochromatic

#180F18 #3E273E #643E64 #8A558A #A974A9

Accessibility & contrast

On white

8.70

#643E64 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#643E64 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643E64

8.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643E64	#FFFFFF	#000000	##FFFFFF
##643E64	1.00	8.70	2.41	8.70
#FFFFFF	8.70	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B4865

Deuteranopia (green-blind)

#454D63

Tritanopia (blue-blind)

#66414C

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #643e64;
/* rgb */ color: rgb(100, 62, 100);
/* oklch */ color: oklch(42.3% 0.077 326.8);

Tailwind

colors: {
  custom: {
    50: '#917490',
    500: '#643e64',
    950: '#000000',
  },
}

SCSS

$custom: #643e64;
$custom-light: #917490;
$custom-dark: #000000;

JSON

{
  "hex": "#643e64",
  "rgb": {
    "r": 100,
    "g": 62,
    "b": 100
  },
  "hsl": {
    "h": 300,
    "s": 23.457,
    "l": 31.765
  },
  "oklch": {
    "l": 0.42299,
    "c": 0.07749,
    "h": 326.8
  },
  "luminance": 0.07075
}

Semantic roles & 50–950 ramp

primary

#643E64

secondary

#6A946A

accent

#C06868

background

#F8F7F8

surface

#F0EDF0

border

#CBC8CB

text

#0D080C

muted

#7D7B7D

Preview Lab

Preview with #643E64

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

Preview Lab → · Contrast checker → · Palette generator →