#643AA7#643AA7

#643AA7 is a mid, vivid violet. Relative luminance 0.085; OKLCH L 45.8% C 0.167 H 297.0°. Best body text is #FFFFFF at 7.76:1 contrast (WCAG AA passes).

Color values

HEX	#643AA7
RGB	rgb(100, 58, 167)
HSL	hsl(263, 48%, 44%)
HSV	hsv(263, 65%, 65%)
CMYK	cmyk(40.1%, 65.3%, 0%, 34.5%)
CIE-LAB	lab(35.05, 42.37, -52.13)
CIE-LCH	lch(35.05, 67.18, 309.10°)
OKLab	oklab(45.85% 0.0758 -0.1486)
OKLCH	oklch(45.85% 0.167 297)
XYZ	xyz(13.7418, 8.5252, 37.4733)
Luminance	0.0853 (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

#643AA7 #7DA73A

analogous

#3A47A7 #643AA7 #9B3AA7

triadic

#643AA7 #A7643A #3AA764

tetradic

#643AA7 #A73A47 #7DA73A #3AA79B

square

#643AA7 #A73A47 #7DA73A #3AA79B

split-complementary

#643AA7 #A79B3A #47A73A

monochromatic

#2E1A4C #492A7A #643AA7 #8359C5 #A586D5

Accessibility & contrast

On white

7.76

#643AA7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.71

#643AA7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643AA7

7.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643AA7	#FFFFFF	#000000	##FFFFFF
##643AA7	1.00	7.76	2.71	7.76
#FFFFFF	7.76	1.00	21.00	1.00
#000000	2.71	21.00	1.00	21.00
##FFFFFF	7.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053AA

Deuteranopia (green-blind)

#0051A5

Tritanopia (blue-blind)

#54536B

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #643aa7;
/* rgb */ color: rgb(100, 58, 167);
/* oklch */ color: oklch(45.8% 0.167 297.0);

Tailwind

colors: {
  custom: {
    50: '#9573c2',
    500: '#643aa7',
    950: '#000000',
  },
}

SCSS

$custom: #643aa7;
$custom-light: #9573c2;
$custom-dark: #000000;

JSON

{
  "hex": "#643aa7",
  "rgb": {
    "r": 100,
    "g": 58,
    "b": 167
  },
  "hsl": {
    "h": 263.119,
    "s": 48.444,
    "l": 44.118
  },
  "oklch": {
    "l": 0.45847,
    "c": 0.16684,
    "h": 297
  },
  "luminance": 0.08525
}

Semantic roles & 50–950 ramp

primary

#643AA7

secondary

#A6BF7E

accent

#D850A4

background

#F9F7FC

surface

#F2EDF8

border

#CCC8D1

text

#0E0812

muted

#7E7B81

Preview Lab

Preview with #643AA7

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

Preview Lab → · Contrast checker → · Palette generator →