#643A67#643A67

#643A67 is a dark, moderate purple. Relative luminance 0.067; OKLCH L 41.7% C 0.089 H 324.6°. Best body text is #FFFFFF at 8.96:1 contrast (WCAG AA passes).

Color values

HEX	#643A67
RGB	rgb(100, 58, 103)
HSL	hsl(296, 28%, 32%)
HSV	hsv(296, 44%, 40%)
CMYK	cmyk(2.9%, 43.7%, 0%, 59.6%)
CIE-LAB	lab(31.15, 26.48, -18.78)
CIE-LCH	lch(31.15, 32.46, 324.65°)
OKLab	oklab(41.72% 0.0724 -0.0514)
OKLCH	oklch(41.72% 0.089 324.6)
XYZ	xyz(9.2165, 6.7151, 13.6400)
Luminance	0.0672 (WCAG relative)
Temperature	neutral
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643A67 #3D673A

analogous

#4E3A67 #643A67 #673A54

triadic

#643A67 #67643A #3A6764

tetradic

#643A67 #674E3A #3D673A #3A5467

square

#643A67 #674E3A #3D673A #3A5467

split-complementary

#643A67 #54673A #3A674E

monochromatic

#180E19 #3E2440 #643A67 #8A508E #A96EAD

Accessibility & contrast

On white

8.96

#643A67 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.34

#643A67 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643A67

8.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643A67	#FFFFFF	#000000	##FFFFFF
##643A67	1.00	8.96	2.34	8.96
#FFFFFF	8.96	1.00	21.00	1.00
#000000	2.34	21.00	1.00	21.00
##FFFFFF	8.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#354669

Deuteranopia (green-blind)

#414B66

Tritanopia (blue-blind)

#663F4B

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #643a67;
/* rgb */ color: rgb(100, 58, 103);
/* oklch */ color: oklch(41.7% 0.089 324.6);

Tailwind

colors: {
  custom: {
    50: '#917192',
    500: '#643a67',
    950: '#000000',
  },
}

SCSS

$custom: #643a67;
$custom-light: #917192;
$custom-dark: #000000;

JSON

{
  "hex": "#643a67",
  "rgb": {
    "r": 100,
    "g": 58,
    "b": 103
  },
  "hsl": {
    "h": 296,
    "s": 27.95,
    "l": 31.569
  },
  "oklch": {
    "l": 0.41722,
    "c": 0.08877,
    "h": 324.6
  },
  "luminance": 0.06715
}

Semantic roles & 50–950 ramp

primary

#643A67

secondary

#699766

accent

#C4646A

background

#F9F6F9

surface

#F1ECF1

border

#CBC7CB

text

#0D080D

muted

#7E7B7E

Preview Lab

Preview with #643A67

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

Preview Lab → · Contrast checker → · Palette generator →