#643DA3#643DA3

#643DA3 is a mid, vivid violet. Relative luminance 0.087; OKLCH L 46.0% C 0.158 H 297.4°. Best body text is #FFFFFF at 7.67:1 contrast (WCAG AA passes).

Color values

HEX	#643DA3
RGB	rgb(100, 61, 163)
HSL	hsl(263, 46%, 44%)
HSV	hsv(263, 63%, 64%)
CMYK	cmyk(38.7%, 62.6%, 0%, 36.1%)
CIE-LAB	lab(35.38, 39.62, -49.20)
CIE-LCH	lch(35.38, 63.17, 308.84°)
OKLab	oklab(45.99% 0.0727 -0.14)
OKLCH	oklch(45.99% 0.158 297.4)
XYZ	xyz(13.5335, 8.6909, 35.6077)
Luminance	0.0869 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643DA3 #7CA33D

analogous

#3D49A3 #643DA3 #973DA3

triadic

#643DA3 #A3643D #3DA364

tetradic

#643DA3 #A33D49 #7CA33D #3DA397

square

#643DA3 #A33D49 #7CA33D #3DA397

split-complementary

#643DA3 #A3973D #49A33D

monochromatic

#2D1C4A #492C76 #643DA3 #835BC2 #A488D2

Accessibility & contrast

On white

7.67

#643DA3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.74

#643DA3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643DA3

7.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643DA3	#FFFFFF	#000000	##FFFFFF
##643DA3	1.00	7.67	2.74	7.67
#FFFFFF	7.67	1.00	21.00	1.00
#000000	2.74	21.00	1.00	21.00
##FFFFFF	7.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054A6

Deuteranopia (green-blind)

#0B52A1

Tritanopia (blue-blind)

#55536A

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #643da3;
/* rgb */ color: rgb(100, 61, 163);
/* oklch */ color: oklch(46.0% 0.158 297.4);

Tailwind

colors: {
  custom: {
    50: '#9574bf',
    500: '#643da3',
    950: '#000000',
  },
}

SCSS

$custom: #643da3;
$custom-light: #9574bf;
$custom-dark: #000000;

JSON

{
  "hex": "#643da3",
  "rgb": {
    "r": 100,
    "g": 61,
    "b": 163
  },
  "hsl": {
    "h": 262.941,
    "s": 45.536,
    "l": 43.922
  },
  "oklch": {
    "l": 0.45994,
    "c": 0.15773,
    "h": 297.4
  },
  "luminance": 0.08691
}

Semantic roles & 50–950 ramp

primary

#643DA3

secondary

#A5BD7F

accent

#D553A3

background

#F9F7FB

surface

#F2EDF7

border

#CCC8D0

text

#0E0812

muted

#7E7B81

Preview Lab

Preview with #643DA3

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

Preview Lab → · Contrast checker → · Palette generator →