#643D67#643D67

#643D67 is a dark, moderate purple. Relative luminance 0.070; OKLCH L 42.3% C 0.083 H 324.4°. Best body text is #FFFFFF at 8.73:1 contrast (WCAG AA passes).

Color values

HEX	#643D67
RGB	rgb(100, 61, 103)
HSL	hsl(296, 26%, 32%)
HSV	hsv(296, 41%, 40%)
CMYK	cmyk(2.9%, 40.8%, 0%, 59.6%)
CIE-LAB	lab(31.87, 24.67, -17.67)
CIE-LCH	lch(31.87, 30.35, 324.39°)
OKLab	oklab(42.26% 0.0674 -0.0483)
OKLCH	oklch(42.26% 0.083 324.4)
XYZ	xyz(9.3722, 7.0265, 13.6919)
Luminance	0.0703 (WCAG relative)
Temperature	neutral
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643D67 #40673D

analogous

#4F3D67 #643D67 #673D55

triadic

#643D67 #67643D #3D6764

tetradic

#643D67 #674F3D #40673D #3D5567

square

#643D67 #674F3D #40673D #3D5567

split-complementary

#643D67 #55673D #3D674F

monochromatic

#190F1A #3F2641 #643D67 #89548D #A873AC

Accessibility & contrast

On white

8.73

#643D67 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#643D67 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643D67

8.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643D67	#FFFFFF	#000000	##FFFFFF
##643D67	1.00	8.73	2.41	8.73
#FFFFFF	8.73	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#394869

Deuteranopia (green-blind)

#434D66

Tritanopia (blue-blind)

#66414D

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #643d67;
/* rgb */ color: rgb(100, 61, 103);
/* oklch */ color: oklch(42.3% 0.083 324.4);

Tailwind

colors: {
  custom: {
    50: '#917392',
    500: '#643d67',
    950: '#000000',
  },
}

SCSS

$custom: #643d67;
$custom-light: #917392;
$custom-dark: #000000;

JSON

{
  "hex": "#643d67",
  "rgb": {
    "r": 100,
    "g": 61,
    "b": 103
  },
  "hsl": {
    "h": 295.714,
    "s": 25.61,
    "l": 32.157
  },
  "oklch": {
    "l": 0.4226,
    "c": 0.08288,
    "h": 324.4
  },
  "luminance": 0.07026
}

Semantic roles & 50–950 ramp

primary

#643D67

secondary

#6C9769

accent

#C2666C

background

#F9F7F9

surface

#F1EDF1

border

#CBC8CB

text

#0D080D

muted

#7E7B7E

Preview Lab

Preview with #643D67

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

Preview Lab → · Contrast checker → · Palette generator →