#643D69#643D69

#643D69 is a dark, moderate purple. Relative luminance 0.071; OKLCH L 42.4% C 0.085 H 322.8°. Best body text is #FFFFFF at 8.70:1 contrast (WCAG AA passes).

Color values

HEX	#643D69
RGB	rgb(100, 61, 105)
HSL	hsl(293, 27%, 33%)
HSV	hsv(293, 42%, 41%)
CMYK	cmyk(4.8%, 41.9%, 0%, 58.8%)
CIE-LAB	lab(31.96, 25.11, -18.80)
CIE-LCH	lch(31.96, 31.37, 323.18°)
OKLab	oklab(42.36% 0.0679 -0.0515)
OKLCH	oklch(42.36% 0.085 322.8)
XYZ	xyz(9.4738, 7.0671, 14.2269)
Luminance	0.0707 (WCAG relative)
Temperature	neutral
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643D69 #42693D

analogous

#4E3D69 #643D69 #693D58

triadic

#643D69 #69643D #3D6964

tetradic

#643D69 #694E3D #42693D #3D5869

square

#643D69 #694E3D #42693D #3D5869

split-complementary

#643D69 #58693D #3D694E

monochromatic

#1A101C #3F2742 #643D69 #895390 #A773AE

Accessibility & contrast

On white

8.70

#643D69 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#643D69 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643D69

8.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643D69	#FFFFFF	#000000	##FFFFFF
##643D69	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)

#38486B

Deuteranopia (green-blind)

#424D68

Tritanopia (blue-blind)

#65424E

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #643d69;
/* rgb */ color: rgb(100, 61, 105);
/* oklch */ color: oklch(42.4% 0.085 322.8);

Tailwind

colors: {
  custom: {
    50: '#917394',
    500: '#643d69',
    950: '#000000',
  },
}

SCSS

$custom: #643d69;
$custom-light: #917394;
$custom-dark: #000000;

JSON

{
  "hex": "#643d69",
  "rgb": {
    "r": 100,
    "g": 61,
    "b": 105
  },
  "hsl": {
    "h": 293.182,
    "s": 26.506,
    "l": 32.549
  },
  "oklch": {
    "l": 0.4236,
    "c": 0.08519,
    "h": 322.8
  },
  "luminance": 0.07067
}

Semantic roles & 50–950 ramp

primary

#643D69

secondary

#6F986A

accent

#C36570

background

#F9F7F9

surface

#F1EDF1

border

#CBC8CB

text

#0D080D

muted

#7E7B7E

Preview Lab

Preview with #643D69

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

Preview Lab → · Contrast checker → · Palette generator →