#643784#643784

#643784 is a dark, vivid violet. Relative luminance 0.071; OKLCH L 42.9% C 0.129 H 308.9°. Best body text is #FFFFFF at 8.67:1 contrast (WCAG AA passes).

Color values

HEX	#643784
RGB	rgb(100, 55, 132)
HSL	hsl(275, 41%, 37%)
HSV	hsv(275, 58%, 52%)
CMYK	cmyk(24.2%, 58.3%, 0%, 48.2%)
CIE-LAB	lab(32.05, 34.95, -35.62)
CIE-LCH	lch(32.05, 49.91, 314.46°)
OKLab	oklab(42.9% 0.0809 -0.1001)
OKLCH	oklch(42.9% 0.129 308.9)
XYZ	xyz(10.7858, 7.1078, 22.6291)
Luminance	0.0711 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643784 #578437

analogous

#3E3784 #643784 #84377E

triadic

#643784 #846437 #378464

tetradic

#643784 #843E37 #578437 #377E84

square

#643784 #843E37 #578437 #377E84

split-complementary

#643784 #7E8437 #37843E

monochromatic

#23132E #432559 #643784 #8549AF #A271C4

Accessibility & contrast

On white

8.67

#643784 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.42

#643784 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643784

8.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643784	#FFFFFF	#000000	##FFFFFF
##643784	1.00	8.67	2.42	8.67
#FFFFFF	8.67	1.00	21.00	1.00
#000000	2.42	21.00	1.00	21.00
##FFFFFF	8.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D4987

Deuteranopia (green-blind)

#2E4C82

Tritanopia (blue-blind)

#604558

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #643784;
/* rgb */ color: rgb(100, 55, 132);
/* oklch */ color: oklch(42.9% 0.129 308.9);

Tailwind

colors: {
  custom: {
    50: '#9270a8',
    500: '#643784',
    950: '#000000',
  },
}

SCSS

$custom: #643784;
$custom-light: #9270a8;
$custom-dark: #000000;

JSON

{
  "hex": "#643784",
  "rgb": {
    "r": 100,
    "g": 55,
    "b": 132
  },
  "hsl": {
    "h": 275.065,
    "s": 41.176,
    "l": 36.667
  },
  "oklch": {
    "l": 0.42903,
    "c": 0.12875,
    "h": 308.9
  },
  "luminance": 0.07108
}

Semantic roles & 50–950 ramp

primary

#643784

secondary

#86AD6A

accent

#D1578A

background

#F9F6FA

surface

#F1ECF4

border

#CBC7CE

text

#0D0710

muted

#7E7A7F

Preview Lab

Preview with #643784

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

Preview Lab → · Contrast checker → · Palette generator →