#643E98#643E98

#643E98 is a mid, vivid violet. Relative luminance 0.084; OKLCH L 45.4% C 0.142 H 300.3°. Best body text is #FFFFFF at 7.82:1 contrast (WCAG AA passes).

Color values

HEX	#643E98
RGB	rgb(100, 62, 152)
HSL	hsl(265, 42%, 42%)
HSV	hsv(265, 59%, 60%)
CMYK	cmyk(34.2%, 59.2%, 0%, 40.4%)
CIE-LAB	lab(34.85, 36.08, -43.42)
CIE-LCH	lch(34.85, 56.46, 309.72°)
OKLab	oklab(45.36% 0.0718 -0.123)
OKLCH	oklch(45.36% 0.142 300.3)
XYZ	xyz(12.6443, 8.4215, 30.6590)
Luminance	0.0842 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643E98 #72983E

analogous

#3E4598 #643E98 #913E98

triadic

#643E98 #98643E #3E9864

tetradic

#643E98 #983E45 #72983E #3E9891

square

#643E98 #983E45 #72983E #3E9891

split-complementary

#643E98 #98913E #45983E

monochromatic

#2B1B41 #472C6D #643E98 #8258BB #A384CD

Accessibility & contrast

On white

7.82

#643E98 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.68

#643E98 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643E98

7.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643E98	#FFFFFF	#000000	##FFFFFF
##643E98	1.00	7.82	2.68	7.82
#FFFFFF	7.82	1.00	21.00	1.00
#000000	2.68	21.00	1.00	21.00
##FFFFFF	7.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#11529B

Deuteranopia (green-blind)

#235196

Tritanopia (blue-blind)

#595065

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #643e98;
/* rgb */ color: rgb(100, 62, 152);
/* oklch */ color: oklch(45.4% 0.142 300.3);

Tailwind

colors: {
  custom: {
    50: '#9475b7',
    500: '#643e98',
    950: '#000000',
  },
}

SCSS

$custom: #643e98;
$custom-light: #9475b7;
$custom-dark: #000000;

JSON

{
  "hex": "#643e98",
  "rgb": {
    "r": 100,
    "g": 62,
    "b": 152
  },
  "hsl": {
    "h": 265.333,
    "s": 42.056,
    "l": 41.961
  },
  "oklch": {
    "l": 0.45362,
    "c": 0.14243,
    "h": 300.3
  },
  "luminance": 0.08422
}

Semantic roles & 50–950 ramp

primary

#643E98

secondary

#9EB77B

accent

#D2569E

background

#F9F7FB

surface

#F2EDF6

border

#CCC8D0

text

#0D0811

muted

#7E7B80

Preview Lab

Preview with #643E98

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

Preview Lab → · Contrast checker → · Palette generator →