#643B68#643B68

#643B68 is a dark, moderate purple. Relative luminance 0.068; OKLCH L 41.9% C 0.088 H 323.8°. Best body text is #FFFFFF at 8.87:1 contrast (WCAG AA passes).

Color values

HEX	#643B68
RGB	rgb(100, 59, 104)
HSL	hsl(295, 28%, 32%)
HSV	hsv(295, 43%, 41%)
CMYK	cmyk(3.8%, 43.3%, 0%, 59.2%)
CIE-LAB	lab(31.43, 26.10, -18.98)
CIE-LCH	lch(31.43, 32.27, 323.97°)
OKLab	oklab(41.95% 0.071 -0.052)
OKLCH	oklch(41.95% 0.088 323.8)
XYZ	xyz(9.3179, 6.8371, 13.9229)
Luminance	0.0684 (WCAG relative)
Temperature	neutral
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643B68 #3F683B

analogous

#4E3B68 #643B68 #683B56

triadic

#643B68 #68643B #3B6864

tetradic

#643B68 #684E3B #3F683B #3B5668

square

#643B68 #684E3B #3F683B #3B5668

split-complementary

#643B68 #56683B #3B684E

monochromatic

#190F1A #3E2541 #643B68 #8A518F #A870AE

Accessibility & contrast

On white

8.87

#643B68 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#643B68 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643B68

8.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643B68	#FFFFFF	#000000	##FFFFFF
##643B68	1.00	8.87	2.37	8.87
#FFFFFF	8.87	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#36476A

Deuteranopia (green-blind)

#414C67

Tritanopia (blue-blind)

#66404C

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #643b68;
/* rgb */ color: rgb(100, 59, 104);
/* oklch */ color: oklch(41.9% 0.088 323.8);

Tailwind

colors: {
  custom: {
    50: '#917293',
    500: '#643b68',
    950: '#000000',
  },
}

SCSS

$custom: #643b68;
$custom-light: #917293;
$custom-dark: #000000;

JSON

{
  "hex": "#643b68",
  "rgb": {
    "r": 100,
    "g": 59,
    "b": 104
  },
  "hsl": {
    "h": 294.667,
    "s": 27.607,
    "l": 31.961
  },
  "oklch": {
    "l": 0.4195,
    "c": 0.08795,
    "h": 323.8
  },
  "luminance": 0.06837
}

Semantic roles & 50–950 ramp

primary

#643B68

secondary

#6B9867

accent

#C4646C

background

#F9F6F9

surface

#F1ECF1

border

#CBC7CB

text

#0D080D

muted

#7E7B7E

Preview Lab

Preview with #643B68

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

Preview Lab → · Contrast checker → · Palette generator →