#643BC0#643BC0

#643BC0 is a mid, vivid violet. Relative luminance 0.096; OKLCH L 48.0% C 0.195 H 291.4°. Best body text is #FFFFFF at 7.17:1 contrast (WCAG AA passes).

Color values

HEX	#643BC0
RGB	rgb(100, 59, 192)
HSL	hsl(258, 53%, 49%)
HSV	hsv(258, 69%, 75%)
CMYK	cmyk(47.9%, 69.3%, 0%, 24.7%)
CIE-LAB	lab(37.19, 48.69, -63.47)
CIE-LCH	lch(37.19, 79.99, 307.49°)
OKLab	oklab(47.99% 0.0713 -0.1819)
OKLCH	oklch(47.99% 0.195 291.4)
XYZ	xyz(16.3312, 9.6424, 50.8596)
Luminance	0.0964 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Bluey Purple

#6241C7

ΔE00 1.85

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643BC0 #97C03B

analogous

#3B55C0 #643BC0 #A73BC0

triadic

#643BC0 #C0643B #3BC064

tetradic

#643BC0 #C03B55 #97C03B #3BC0A7

square

#643BC0 #C03B55 #97C03B #3BC0A7

split-complementary

#643BC0 #C0A73B #55C03B

monochromatic

#331E62 #4C2D91 #643BC0 #8868D1 #AD97DF

Accessibility & contrast

On white

7.17

#643BC0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.93

#643BC0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643BC0

7.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643BC0	#FFFFFF	#000000	##FFFFFF
##643BC0	1.00	7.17	2.93	7.17
#FFFFFF	7.17	1.00	21.00	1.00
#000000	2.93	21.00	1.00	21.00
##FFFFFF	7.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005AC4

Deuteranopia (green-blind)

#0055BD

Tritanopia (blue-blind)

#475D79

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #643bc0;
/* rgb */ color: rgb(100, 59, 192);
/* oklch */ color: oklch(48.0% 0.195 291.4);

Tailwind

colors: {
  custom: {
    50: '#9874d4',
    500: '#643bc0',
    950: '#000000',
  },
}

SCSS

$custom: #643bc0;
$custom-light: #9874d4;
$custom-dark: #000000;

JSON

{
  "hex": "#643bc0",
  "rgb": {
    "r": 100,
    "g": 59,
    "b": 192
  },
  "hsl": {
    "h": 258.496,
    "s": 52.988,
    "l": 49.216
  },
  "oklch": {
    "l": 0.47992,
    "c": 0.1954,
    "h": 291.4
  },
  "luminance": 0.09643
}

Semantic roles & 50–950 ramp

primary

#643BC0

secondary

#B7CA8C

accent

#DC4BB0

background

#F9F7FD

surface

#F2EDFA

border

#CCC8D3

text

#0F0814

muted

#7E7B83

Preview Lab

Preview with #643BC0

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

Preview Lab → · Contrast checker → · Palette generator →