#643189#643189

#643189 is a dark, vivid violet. Relative luminance 0.067; OKLCH L 42.3% C 0.144 H 308.1°. Best body text is #FFFFFF at 8.97:1 contrast (WCAG AA passes).

Color values

HEX	#643189
RGB	rgb(100, 49, 137)
HSL	hsl(275, 47%, 36%)
HSV	hsv(275, 64%, 54%)
CMYK	cmyk(27%, 64.2%, 0%, 46.3%)
CIE-LAB	lab(31.14, 39.48, -40.18)
CIE-LCH	lch(31.14, 56.33, 314.50°)
OKLab	oklab(42.35% 0.089 -0.1134)
OKLCH	oklch(42.35% 0.144 308.1)
XYZ	xyz(10.8683, 6.7123, 24.3851)
Luminance	0.0671 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643189 #568931

analogous

#383189 #643189 #893182

triadic

#643189 #896431 #318964

tetradic

#643189 #893831 #568931 #318289

square

#643189 #893831 #568931 #318289

split-complementary

#643189 #828931 #318938

monochromatic

#22112F #43215C #643189 #8541B6 #A26BCA

Accessibility & contrast

On white

8.97

#643189 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.34

#643189 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643189

8.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643189	#FFFFFF	#000000	##FFFFFF
##643189	1.00	8.97	2.34	8.97
#FFFFFF	8.97	1.00	21.00	1.00
#000000	2.34	21.00	1.00	21.00
##FFFFFF	8.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#02478C

Deuteranopia (green-blind)

#224A87

Tritanopia (blue-blind)

#5E4358

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #643189;
/* rgb */ color: rgb(100, 49, 137);
/* oklch */ color: oklch(42.3% 0.144 308.1);

Tailwind

colors: {
  custom: {
    50: '#936cac',
    500: '#643189',
    950: '#000000',
  },
}

SCSS

$custom: #643189;
$custom-light: #936cac;
$custom-dark: #000000;

JSON

{
  "hex": "#643189",
  "rgb": {
    "r": 100,
    "g": 49,
    "b": 137
  },
  "hsl": {
    "h": 274.773,
    "s": 47.312,
    "l": 36.471
  },
  "oklch": {
    "l": 0.42345,
    "c": 0.14417,
    "h": 308.1
  },
  "luminance": 0.06712
}

Semantic roles & 50–950 ramp

primary

#643189

secondary

#85B164

accent

#D75189

background

#F9F6FA

surface

#F2EBF4

border

#CCC6CE

text

#0D0710

muted

#7E7A7F

Preview Lab

Preview with #643189

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

Preview Lab → · Contrast checker → · Palette generator →