#643E63#643E63

#643E63 is a dark, moderate purple. Relative luminance 0.071; OKLCH L 42.3% C 0.076 H 327.7°. Best body text is #FFFFFF at 8.71:1 contrast (WCAG AA passes).

Color values

HEX	#643E63
RGB	rgb(100, 62, 99)
HSL	hsl(302, 23%, 32%)
HSV	hsv(302, 38%, 39%)
CMYK	cmyk(0%, 38%, 1%, 60.8%)
CIE-LAB	lab(31.93, 23.21, -15.02)
CIE-LCH	lch(31.93, 27.65, 327.10°)
OKLab	oklab(42.25% 0.0646 -0.0408)
OKLCH	oklch(42.25% 0.076 327.7)
XYZ	xyz(9.2301, 7.0558, 12.6777)
Luminance	0.0706 (WCAG relative)
Temperature	neutral
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643E63 #3E643F

analogous

#523E64 #643E63 #643E50

triadic

#643E63 #63643E #3E6364

tetradic

#643E63 #64523E #3E643F #3E5064

square

#643E63 #64523E #3E643F #3E5064

split-complementary

#643E63 #50643E #3E6452

monochromatic

#180F18 #3E273E #643E63 #8A5588 #A974A7

Accessibility & contrast

On white

8.71

#643E63 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#643E63 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643E63

8.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643E63	#FFFFFF	#000000	##FFFFFF
##643E63	1.00	8.71	2.41	8.71
#FFFFFF	8.71	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C4864

Deuteranopia (green-blind)

#454D62

Tritanopia (blue-blind)

#66414C

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #643e63;
/* rgb */ color: rgb(100, 62, 99);
/* oklch */ color: oklch(42.3% 0.076 327.7);

Tailwind

colors: {
  custom: {
    50: '#91748f',
    500: '#643e63',
    950: '#000000',
  },
}

SCSS

$custom: #643e63;
$custom-light: #91748f;
$custom-dark: #000000;

JSON

{
  "hex": "#643e63",
  "rgb": {
    "r": 100,
    "g": 62,
    "b": 99
  },
  "hsl": {
    "h": 301.579,
    "s": 23.457,
    "l": 31.765
  },
  "oklch": {
    "l": 0.42252,
    "c": 0.07638,
    "h": 327.7
  },
  "luminance": 0.07055
}

Semantic roles & 50–950 ramp

primary

#643E63

secondary

#6A946B

accent

#C06A68

background

#F8F7F8

surface

#F0EDF0

border

#CBC8CB

text

#0D080C

muted

#7D7B7D

Preview Lab

Preview with #643E63

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

Preview Lab → · Contrast checker → · Palette generator →