#643D64#643D64

#643D64 is a dark, moderate purple. Relative luminance 0.070; OKLCH L 42.1% C 0.079 H 326.9°. Best body text is #FFFFFF at 8.77:1 contrast (WCAG AA passes).

Color values

HEX	#643D64
RGB	rgb(100, 61, 100)
HSL	hsl(300, 24%, 32%)
HSV	hsv(300, 39%, 39%)
CMYK	cmyk(0%, 39%, 0%, 60.8%)
CIE-LAB	lab(31.73, 24.03, -15.97)
CIE-LCH	lch(31.73, 28.85, 326.40°)
OKLab	oklab(42.12% 0.0666 -0.0434)
OKLCH	oklch(42.12% 0.079 326.9)
XYZ	xyz(9.2243, 6.9673, 12.9131)
Luminance	0.0697 (WCAG relative)
Temperature	neutral
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643D64 #3D643D

analogous

#513D64 #643D64 #643D51

triadic

#643D64 #64643D #3D6464

tetradic

#643D64 #64513D #3D643D #3D5164

square

#643D64 #64513D #3D643D #3D5164

split-complementary

#643D64 #51643D #3D6451

monochromatic

#180F18 #3E263E #643D64 #8A548A #A972A9

Accessibility & contrast

On white

8.77

#643D64 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#643D64 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643D64

8.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643D64	#FFFFFF	#000000	##FFFFFF
##643D64	1.00	8.77	2.39	8.77
#FFFFFF	8.77	1.00	21.00	1.00
#000000	2.39	21.00	1.00	21.00
##FFFFFF	8.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A4865

Deuteranopia (green-blind)

#444C63

Tritanopia (blue-blind)

#66414C

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #643d64;
/* rgb */ color: rgb(100, 61, 100);
/* oklch */ color: oklch(42.1% 0.079 326.9);

Tailwind

colors: {
  custom: {
    50: '#917390',
    500: '#643d64',
    950: '#000000',
  },
}

SCSS

$custom: #643d64;
$custom-light: #917390;
$custom-dark: #000000;

JSON

{
  "hex": "#643d64",
  "rgb": {
    "r": 100,
    "g": 61,
    "b": 100
  },
  "hsl": {
    "h": 300,
    "s": 24.224,
    "l": 31.569
  },
  "oklch": {
    "l": 0.42115,
    "c": 0.07949,
    "h": 326.9
  },
  "luminance": 0.06967
}

Semantic roles & 50–950 ramp

primary

#643D64

secondary

#699469

accent

#C16767

background

#F9F7F8

surface

#F1EDF0

border

#CBC8CB

text

#0D080C

muted

#7E7B7D

Preview Lab

Preview with #643D64

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

Preview Lab → · Contrast checker → · Palette generator →