#643D63#643D63

#643D63 is a dark, moderate purple. Relative luminance 0.069; OKLCH L 42.1% C 0.078 H 327.7°. Best body text is #FFFFFF at 8.79:1 contrast (WCAG AA passes).

Color values

HEX	#643D63
RGB	rgb(100, 61, 99)
HSL	hsl(302, 24%, 32%)
HSV	hsv(302, 39%, 39%)
CMYK	cmyk(0%, 39%, 1%, 60.8%)
CIE-LAB	lab(31.69, 23.82, -15.39)
CIE-LCH	lch(31.69, 28.36, 327.13°)
OKLab	oklab(42.07% 0.0663 -0.0418)
OKLCH	oklch(42.07% 0.078 327.7)
XYZ	xyz(9.1762, 6.9481, 12.6597)
Luminance	0.0695 (WCAG relative)
Temperature	neutral
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643D63 #3D643E

analogous

#523D64 #643D63 #643D50

triadic

#643D63 #63643D #3D6364

tetradic

#643D63 #64523D #3D643E #3D5064

square

#643D63 #64523D #3D643E #3D5064

split-complementary

#643D63 #50643D #3D6452

monochromatic

#180F18 #3E263D #643D63 #8A5489 #A972A8

Accessibility & contrast

On white

8.79

#643D63 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#643D63 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643D63

8.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643D63	#FFFFFF	#000000	##FFFFFF
##643D63	1.00	8.79	2.39	8.79
#FFFFFF	8.79	1.00	21.00	1.00
#000000	2.39	21.00	1.00	21.00
##FFFFFF	8.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A4764

Deuteranopia (green-blind)

#444C62

Tritanopia (blue-blind)

#66404B

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #643d63;
/* rgb */ color: rgb(100, 61, 99);
/* oklch */ color: oklch(42.1% 0.078 327.7);

Tailwind

colors: {
  custom: {
    50: '#91738f',
    500: '#643d63',
    950: '#000000',
  },
}

SCSS

$custom: #643d63;
$custom-light: #91738f;
$custom-dark: #000000;

JSON

{
  "hex": "#643d63",
  "rgb": {
    "r": 100,
    "g": 61,
    "b": 99
  },
  "hsl": {
    "h": 301.538,
    "s": 24.224,
    "l": 31.569
  },
  "oklch": {
    "l": 0.42067,
    "c": 0.07838,
    "h": 327.7
  },
  "luminance": 0.06948
}

Semantic roles & 50–950 ramp

primary

#643D63

secondary

#69946A

accent

#C16967

background

#F9F7F8

surface

#F1EDF0

border

#CBC8CB

text

#0D080C

muted

#7E7B7D

Preview Lab

Preview with #643D63

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

Preview Lab → · Contrast checker → · Palette generator →