#643890#643890

#643890 is a dark, vivid violet. Relative luminance 0.076; OKLCH L 43.9% C 0.142 H 304.2°. Best body text is #FFFFFF at 8.37:1 contrast (WCAG AA passes).

Color values

HEX	#643890
RGB	rgb(100, 56, 144)
HSL	hsl(270, 44%, 39%)
HSV	hsv(270, 61%, 56%)
CMYK	cmyk(30.6%, 61.1%, 0%, 43.5%)
CIE-LAB	lab(33.03, 37.41, -41.46)
CIE-LCH	lch(33.03, 55.84, 312.06°)
OKLab	oklab(43.87% 0.0797 -0.1172)
OKLCH	oklch(43.87% 0.142 304.2)
XYZ	xyz(11.7026, 7.5513, 27.2212)
Luminance	0.0755 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643890 #649038

analogous

#383890 #643890 #903890

triadic

#643890 #906438 #389064

tetradic

#643890 #903838 #649038 #389090

square

#643890 #903838 #649038 #389090

split-complementary

#643890 #909038 #389038

monochromatic

#271638 #452764 #643890 #834CB9 #A178CA

Accessibility & contrast

On white

8.37

#643890 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.51

#643890 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643890

8.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643890	#FFFFFF	#000000	##FFFFFF
##643890	1.00	8.37	2.51	8.37
#FFFFFF	8.37	1.00	21.00	1.00
#000000	2.51	21.00	1.00	21.00
##FFFFFF	8.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D4D93

Deuteranopia (green-blind)

#244E8E

Tritanopia (blue-blind)

#5C4A5E

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #643890;
/* rgb */ color: rgb(100, 56, 144);
/* oklch */ color: oklch(43.9% 0.142 304.2);

Tailwind

colors: {
  custom: {
    50: '#9371b1',
    500: '#643890',
    950: '#000000',
  },
}

SCSS

$custom: #643890;
$custom-light: #9371b1;
$custom-dark: #000000;

JSON

{
  "hex": "#643890",
  "rgb": {
    "r": 100,
    "g": 56,
    "b": 144
  },
  "hsl": {
    "h": 270,
    "s": 44,
    "l": 39.216
  },
  "oklch": {
    "l": 0.43866,
    "c": 0.14175,
    "h": 304.2
  },
  "luminance": 0.07551
}

Semantic roles & 50–950 ramp

primary

#643890

secondary

#92B470

accent

#D45494

background

#F9F6FA

surface

#F2ECF5

border

#CCC7CF

text

#0D0811

muted

#7E7B80

Preview Lab

Preview with #643890

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

Preview Lab → · Contrast checker → · Palette generator →