#643786#643786

#643786 is a dark, vivid violet. Relative luminance 0.072; OKLCH L 43.0% C 0.131 H 308.1°. Best body text is #FFFFFF at 8.63:1 contrast (WCAG AA passes).

Color values

HEX	#643786
RGB	rgb(100, 55, 134)
HSL	hsl(274, 42%, 37%)
HSV	hsv(274, 59%, 53%)
CMYK	cmyk(25.4%, 59%, 0%, 47.5%)
CIE-LAB	lab(32.18, 35.45, -36.66)
CIE-LCH	lch(32.18, 51.00, 314.03°)
OKLab	oklab(43.03% 0.081 -0.1032)
OKLCH	oklch(43.03% 0.131 308.1)
XYZ	xyz(10.9239, 7.1631, 23.3568)
Luminance	0.0716 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643786 #598637

analogous

#3C3786 #643786 #863781

triadic

#643786 #866437 #378664

tetradic

#643786 #863C37 #598637 #378186

square

#643786 #863C37 #598637 #378186

split-complementary

#643786 #818637 #37863C

monochromatic

#23132F #44255B #643786 #8449B1 #A172C5

Accessibility & contrast

On white

8.63

#643786 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.43

#643786 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643786

8.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643786	#FFFFFF	#000000	##FFFFFF
##643786	1.00	8.63	2.43	8.63
#FFFFFF	8.63	1.00	21.00	1.00
#000000	2.43	21.00	1.00	21.00
##FFFFFF	8.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B4A89

Deuteranopia (green-blind)

#2C4C84

Tritanopia (blue-blind)

#5F4659

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #643786;
/* rgb */ color: rgb(100, 55, 134);
/* oklch */ color: oklch(43.0% 0.131 308.1);

Tailwind

colors: {
  custom: {
    50: '#9370aa',
    500: '#643786',
    950: '#000000',
  },
}

SCSS

$custom: #643786;
$custom-light: #9370aa;
$custom-dark: #000000;

JSON

{
  "hex": "#643786",
  "rgb": {
    "r": 100,
    "g": 55,
    "b": 134
  },
  "hsl": {
    "h": 274.177,
    "s": 41.799,
    "l": 37.059
  },
  "oklch": {
    "l": 0.43034,
    "c": 0.13117,
    "h": 308.1
  },
  "luminance": 0.07163
}

Semantic roles & 50–950 ramp

primary

#643786

secondary

#88AE6B

accent

#D2568B

background

#F9F6FA

surface

#F1ECF4

border

#CBC7CE

text

#0D0710

muted

#7E7A7F

Preview Lab

Preview with #643786

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

Preview Lab → · Contrast checker → · Palette generator →