#643AA8#643AA8

#643AA8 is a mid, vivid violet. Relative luminance 0.086; OKLCH L 45.9% C 0.168 H 296.8°. Best body text is #FFFFFF at 7.74:1 contrast (WCAG AA passes).

Color values

HEX	#643AA8
RGB	rgb(100, 58, 168)
HSL	hsl(263, 49%, 44%)
HSV	hsv(263, 65%, 66%)
CMYK	cmyk(40.5%, 65.5%, 0%, 34.1%)
CIE-LAB	lab(35.13, 42.64, -52.61)
CIE-LCH	lch(35.13, 67.72, 309.02°)
OKLab	oklab(45.92% 0.0757 -0.15)
OKLCH	oklch(45.92% 0.168 296.8)
XYZ	xyz(13.8346, 8.5623, 37.9620)
Luminance	0.0856 (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

#643AA8 #7EA83A

analogous

#3A47A8 #643AA8 #9B3AA8

triadic

#643AA8 #A8643A #3AA864

tetradic

#643AA8 #A83A47 #7EA83A #3AA89B

square

#643AA8 #A83A47 #7EA83A #3AA89B

split-complementary

#643AA8 #A89B3A #47A83A

monochromatic

#2E1B4D #492A7B #643AA8 #8359C6 #A587D6

Accessibility & contrast

On white

7.74

#643AA8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.71

#643AA8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643AA8

7.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643AA8	#FFFFFF	#000000	##FFFFFF
##643AA8	1.00	7.74	2.71	7.74
#FFFFFF	7.74	1.00	21.00	1.00
#000000	2.71	21.00	1.00	21.00
##FFFFFF	7.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053AB

Deuteranopia (green-blind)

#0051A6

Tritanopia (blue-blind)

#53536C

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #643aa8;
/* rgb */ color: rgb(100, 58, 168);
/* oklch */ color: oklch(45.9% 0.168 296.8);

Tailwind

colors: {
  custom: {
    50: '#9573c3',
    500: '#643aa8',
    950: '#000000',
  },
}

SCSS

$custom: #643aa8;
$custom-light: #9573c3;
$custom-dark: #000000;

JSON

{
  "hex": "#643aa8",
  "rgb": {
    "r": 100,
    "g": 58,
    "b": 168
  },
  "hsl": {
    "h": 262.909,
    "s": 48.673,
    "l": 44.314
  },
  "oklch": {
    "l": 0.45924,
    "c": 0.16806,
    "h": 296.8
  },
  "luminance": 0.08563
}

Semantic roles & 50–950 ramp

primary

#643AA8

secondary

#A7C07E

accent

#D850A4

background

#F9F7FC

surface

#F2EDF8

border

#CCC8D1

text

#0E0812

muted

#7E7B81

Preview Lab

Preview with #643AA8

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

Preview Lab → · Contrast checker → · Palette generator →