#643EA1#643EA1

#643EA1 is a mid, vivid violet. Relative luminance 0.087; OKLCH L 46.0% C 0.154 H 297.7°. Best body text is #FFFFFF at 7.65:1 contrast (WCAG AA passes).

Color values

HEX	#643EA1
RGB	rgb(100, 62, 161)
HSL	hsl(263, 44%, 44%)
HSV	hsv(263, 61%, 63%)
CMYK	cmyk(37.9%, 61.5%, 0%, 36.9%)
CIE-LAB	lab(35.45, 38.51, -47.88)
CIE-LCH	lch(35.45, 61.45, 308.81°)
OKLab	oklab(46% 0.0716 -0.1361)
OKLCH	oklch(46% 0.154 297.7)
XYZ	xyz(13.4096, 8.7276, 34.6894)
Luminance	0.0873 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643EA1 #7BA13E

analogous

#3E49A1 #643EA1 #953EA1

triadic

#643EA1 #A1643E #3EA164

tetradic

#643EA1 #A13E49 #7BA13E #3EA195

square

#643EA1 #A13E49 #7BA13E #3EA195

split-complementary

#643EA1 #A1953E #49A13E

monochromatic

#2D1C49 #492D75 #643EA1 #825CC0 #A488D1

Accessibility & contrast

On white

7.65

#643EA1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.75

#643EA1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643EA1

7.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643EA1	#FFFFFF	#000000	##FFFFFF
##643EA1	1.00	7.65	2.75	7.65
#FFFFFF	7.65	1.00	21.00	1.00
#000000	2.75	21.00	1.00	21.00
##FFFFFF	7.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054A4

Deuteranopia (green-blind)

#14529F

Tritanopia (blue-blind)

#565369

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #643ea1;
/* rgb */ color: rgb(100, 62, 161);
/* oklch */ color: oklch(46.0% 0.154 297.7);

Tailwind

colors: {
  custom: {
    50: '#9475bd',
    500: '#643ea1',
    950: '#000000',
  },
}

SCSS

$custom: #643ea1;
$custom-light: #9475bd;
$custom-dark: #000000;

JSON

{
  "hex": "#643ea1",
  "rgb": {
    "r": 100,
    "g": 62,
    "b": 161
  },
  "hsl": {
    "h": 263.03,
    "s": 44.395,
    "l": 43.725
  },
  "oklch": {
    "l": 0.46002,
    "c": 0.15378,
    "h": 297.7
  },
  "luminance": 0.08728
}

Semantic roles & 50–950 ramp

primary

#643EA1

secondary

#A4BC7F

accent

#D454A3

background

#F9F7FB

surface

#F2EDF7

border

#CCC8D0

text

#0E0812

muted

#7E7B81

Preview Lab

Preview with #643EA1

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

Preview Lab → · Contrast checker → · Palette generator →