#643498#643498

#643498 is a dark, vivid violet. Relative luminance 0.074; OKLCH L 43.9% C 0.157 H 302.4°. Best body text is #FFFFFF at 8.45:1 contrast (WCAG AA passes).

Color values

HEX	#643498
RGB	rgb(100, 52, 152)
HSL	hsl(269, 49%, 40%)
HSV	hsv(269, 66%, 60%)
CMYK	cmyk(34.2%, 65.8%, 0%, 40.4%)
CIE-LAB	lab(32.77, 41.65, -46.76)
CIE-LCH	lch(32.77, 62.62, 311.69°)
OKLab	oklab(43.85% 0.0843 -0.1328)
OKLCH	oklch(43.85% 0.157 302.4)
XYZ	xyz(12.1497, 7.4323, 30.4942)
Luminance	0.0743 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643498 #689834

analogous

#343698 #643498 #963498

triadic

#643498 #986434 #349864

tetradic

#643498 #983436 #689834 #349896

square

#643498 #983436 #689834 #349896

split-complementary

#643498 #989634 #369834

monochromatic

#28153D #46246A #643498 #8249C1 #A176D0

Accessibility & contrast

On white

8.45

#643498 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#643498 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643498

8.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643498	#FFFFFF	#000000	##FFFFFF
##643498	1.00	8.45	2.49	8.45
#FFFFFF	8.45	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004C9B

Deuteranopia (green-blind)

#0F4D96

Tritanopia (blue-blind)

#5A4A61

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #643498;
/* rgb */ color: rgb(100, 52, 152);
/* oklch */ color: oklch(43.9% 0.157 302.4);

Tailwind

colors: {
  custom: {
    50: '#946eb7',
    500: '#643498',
    950: '#000000',
  },
}

SCSS

$custom: #643498;
$custom-light: #946eb7;
$custom-dark: #000000;

JSON

{
  "hex": "#643498",
  "rgb": {
    "r": 100,
    "g": 52,
    "b": 152
  },
  "hsl": {
    "h": 268.8,
    "s": 49.02,
    "l": 40
  },
  "oklch": {
    "l": 0.43854,
    "c": 0.15729,
    "h": 302.4
  },
  "luminance": 0.07432
}

Semantic roles & 50–950 ramp

primary

#643498

secondary

#95B96F

accent

#D94F97

background

#F9F6FB

surface

#F2ECF6

border

#CCC7D0

text

#0E0711

muted

#7E7A80

Preview Lab

Preview with #643498

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

Preview Lab → · Contrast checker → · Palette generator →