#643698#643698

#643698 is a dark, vivid violet. Relative luminance 0.076; OKLCH L 44.1% C 0.154 H 302.0°. Best body text is #FFFFFF at 8.32:1 contrast (WCAG AA passes).

Color values

HEX	#643698
RGB	rgb(100, 54, 152)
HSL	hsl(268, 48%, 40%)
HSV	hsv(268, 64%, 60%)
CMYK	cmyk(34.2%, 64.5%, 0%, 40.4%)
CIE-LAB	lab(33.17, 40.57, -46.13)
CIE-LCH	lch(33.17, 61.43, 311.34°)
OKLab	oklab(44.14% 0.0819 -0.1309)
OKLCH	oklch(44.14% 0.154 302)
XYZ	xyz(12.2409, 7.6146, 30.5246)
Luminance	0.0761 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643698 #6A9836

analogous

#363998 #643698 #953698

triadic

#643698 #986436 #369864

tetradic

#643698 #983639 #6A9836 #369895

square

#643698 #983639 #6A9836 #369895

split-complementary

#643698 #989536 #399836

monochromatic

#29163E #46266B #643698 #824CBF #A279CF

Accessibility & contrast

On white

8.32

#643698 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.52

#643698 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643698

8.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643698	#FFFFFF	#000000	##FFFFFF
##643698	1.00	8.32	2.52	8.32
#FFFFFF	8.32	1.00	21.00	1.00
#000000	2.52	21.00	1.00	21.00
##FFFFFF	8.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004D9B

Deuteranopia (green-blind)

#144E96

Tritanopia (blue-blind)

#594B62

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #643698;
/* rgb */ color: rgb(100, 54, 152);
/* oklch */ color: oklch(44.1% 0.154 302.0);

Tailwind

colors: {
  custom: {
    50: '#9470b7',
    500: '#643698',
    950: '#000000',
  },
}

SCSS

$custom: #643698;
$custom-light: #9470b7;
$custom-dark: #000000;

JSON

{
  "hex": "#643698",
  "rgb": {
    "r": 100,
    "g": 54,
    "b": 152
  },
  "hsl": {
    "h": 268.163,
    "s": 47.573,
    "l": 40.392
  },
  "oklch": {
    "l": 0.4414,
    "c": 0.15442,
    "h": 302
  },
  "luminance": 0.07615
}

Semantic roles & 50–950 ramp

primary

#643698

secondary

#97B872

accent

#D75198

background

#F9F6FB

surface

#F2ECF6

border

#CCC7D0

text

#0E0711

muted

#7E7A80

Preview Lab

Preview with #643698

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

Preview Lab → · Contrast checker → · Palette generator →