#643898#643898

#643898 is a dark, vivid violet. Relative luminance 0.078; OKLCH L 44.4% C 0.151 H 301.6°. Best body text is #FFFFFF at 8.20:1 contrast (WCAG AA passes).

Color values

HEX	#643898
RGB	rgb(100, 56, 152)
HSL	hsl(268, 46%, 41%)
HSV	hsv(268, 63%, 60%)
CMYK	cmyk(34.2%, 63.2%, 0%, 40.4%)
CIE-LAB	lab(33.57, 39.48, -45.47)
CIE-LCH	lch(33.57, 60.22, 310.96°)
OKLab	oklab(44.43% 0.0794 -0.129)
OKLCH	oklch(44.43% 0.151 301.6)
XYZ	xyz(12.3359, 7.8046, 30.5562)
Luminance	0.0780 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643898 #6C9838

analogous

#383C98 #643898 #943898

triadic

#643898 #986438 #389864

tetradic

#643898 #98383C #6C9838 #389894

square

#643898 #98383C #6C9838 #389894

split-complementary

#643898 #989438 #3C9838

monochromatic

#29173F #47286B #643898 #824FBE #A27CCF

Accessibility & contrast

On white

8.20

#643898 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.56

#643898 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643898

8.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643898	#FFFFFF	#000000	##FFFFFF
##643898	1.00	8.20	2.56	8.20
#FFFFFF	8.20	1.00	21.00	1.00
#000000	2.56	21.00	1.00	21.00
##FFFFFF	8.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004E9B

Deuteranopia (green-blind)

#184E96

Tritanopia (blue-blind)

#594C62

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #643898;
/* rgb */ color: rgb(100, 56, 152);
/* oklch */ color: oklch(44.4% 0.151 301.6);

Tailwind

colors: {
  custom: {
    50: '#9471b7',
    500: '#643898',
    950: '#000000',
  },
}

SCSS

$custom: #643898;
$custom-light: #9471b7;
$custom-dark: #000000;

JSON

{
  "hex": "#643898",
  "rgb": {
    "r": 100,
    "g": 56,
    "b": 152
  },
  "hsl": {
    "h": 267.5,
    "s": 46.154,
    "l": 40.784
  },
  "oklch": {
    "l": 0.44434,
    "c": 0.15149,
    "h": 301.6
  },
  "luminance": 0.07805
}

Semantic roles & 50–950 ramp

primary

#643898

secondary

#99B874

accent

#D65299

background

#F9F6FB

surface

#F2ECF6

border

#CCC7D0

text

#0D0811

muted

#7E7B80

Preview Lab

Preview with #643898

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

Preview Lab → · Contrast checker → · Palette generator →