#643187#643187

#643187 is a dark, vivid violet. Relative luminance 0.067; OKLCH L 42.2% C 0.142 H 308.9°. Best body text is #FFFFFF at 9.01:1 contrast (WCAG AA passes).

Color values

HEX	#643187
RGB	rgb(100, 49, 135)
HSL	hsl(276, 47%, 36%)
HSV	hsv(276, 64%, 53%)
CMYK	cmyk(25.9%, 63.7%, 0%, 47.1%)
CIE-LAB	lab(31.01, 39.00, -39.15)
CIE-LCH	lch(31.01, 55.26, 314.89°)
OKLab	oklab(42.21% 0.089 -0.1104)
OKLCH	oklch(42.21% 0.142 308.9)
XYZ	xyz(10.7261, 6.6554, 23.6365)
Luminance	0.0665 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643187 #548731

analogous

#393187 #643187 #87317F

triadic

#643187 #876431 #318764

tetradic

#643187 #873931 #548731 #317F87

square

#643187 #873931 #548731 #317F87

split-complementary

#643187 #7F8731 #318739

monochromatic

#21102D #43215A #643187 #8541B4 #A26AC9

Accessibility & contrast

On white

9.01

#643187 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.33

#643187 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643187

9.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643187	#FFFFFF	#000000	##FFFFFF
##643187	1.00	9.01	2.33	9.01
#FFFFFF	9.01	1.00	21.00	1.00
#000000	2.33	21.00	1.00	21.00
##FFFFFF	9.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#07478A

Deuteranopia (green-blind)

#244A85

Tritanopia (blue-blind)

#5F4257

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #643187;
/* rgb */ color: rgb(100, 49, 135);
/* oklch */ color: oklch(42.2% 0.142 308.9);

Tailwind

colors: {
  custom: {
    50: '#936caa',
    500: '#643187',
    950: '#000000',
  },
}

SCSS

$custom: #643187;
$custom-light: #936caa;
$custom-dark: #000000;

JSON

{
  "hex": "#643187",
  "rgb": {
    "r": 100,
    "g": 49,
    "b": 135
  },
  "hsl": {
    "h": 275.581,
    "s": 46.739,
    "l": 36.078
  },
  "oklch": {
    "l": 0.42205,
    "c": 0.14186,
    "h": 308.9
  },
  "luminance": 0.06655
}

Semantic roles & 50–950 ramp

primary

#643187

secondary

#83B064

accent

#D65188

background

#F9F6FA

surface

#F2EBF4

border

#CCC6CE

text

#0D0710

muted

#7E7A7F

Preview Lab

Preview with #643187

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

Preview Lab → · Contrast checker → · Palette generator →