#643CBF#643CBF

#643CBF is a mid, vivid violet. Relative luminance 0.097; OKLCH L 48.0% C 0.193 H 291.4°. Best body text is #FFFFFF at 7.14:1 contrast (WCAG AA passes).

Color values

HEX	#643CBF
RGB	rgb(100, 60, 191)
HSL	hsl(258, 52%, 49%)
HSV	hsv(258, 69%, 75%)
CMYK	cmyk(47.6%, 68.6%, 0%, 25.1%)
CIE-LAB	lab(37.30, 47.89, -62.70)
CIE-LCH	lch(37.30, 78.90, 307.37°)
OKLab	oklab(48.05% 0.0705 -0.1797)
OKLCH	oklch(48.05% 0.193 291.4)
XYZ	xyz(16.2727, 9.7020, 50.2954)
Luminance	0.0970 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Bluey Purple

#6241C7

ΔE00 1.77

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643CBF #97BF3C

analogous

#3C55BF #643CBF #A63CBF

triadic

#643CBF #BF643C #3CBF64

tetradic

#643CBF #BF3C55 #97BF3C #3CBFA6

square

#643CBF #BF3C55 #97BF3C #3CBFA6

split-complementary

#643CBF #BFA63C #55BF3C

monochromatic

#331F62 #4C2D90 #643CBF #8868D0 #AD97DE

Accessibility & contrast

On white

7.14

#643CBF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.94

#643CBF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643CBF

7.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643CBF	#FFFFFF	#000000	##FFFFFF
##643CBF	1.00	7.14	2.94	7.14
#FFFFFF	7.14	1.00	21.00	1.00
#000000	2.94	21.00	1.00	21.00
##FFFFFF	7.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005AC3

Deuteranopia (green-blind)

#0055BC

Tritanopia (blue-blind)

#475D79

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #643cbf;
/* rgb */ color: rgb(100, 60, 191);
/* oklch */ color: oklch(48.0% 0.193 291.4);

Tailwind

colors: {
  custom: {
    50: '#9875d3',
    500: '#643cbf',
    950: '#000000',
  },
}

SCSS

$custom: #643cbf;
$custom-light: #9875d3;
$custom-dark: #000000;

JSON

{
  "hex": "#643cbf",
  "rgb": {
    "r": 100,
    "g": 60,
    "b": 191
  },
  "hsl": {
    "h": 258.321,
    "s": 52.191,
    "l": 49.216
  },
  "oklch": {
    "l": 0.48045,
    "c": 0.19303,
    "h": 291.4
  },
  "luminance": 0.09703
}

Semantic roles & 50–950 ramp

primary

#643CBF

secondary

#B7CA8D

accent

#DC4CB0

background

#F9F7FD

surface

#F2EDFA

border

#CCC8D3

text

#0F0814

muted

#7E7B83

Preview Lab

Preview with #643CBF

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

Preview Lab → · Contrast checker → · Palette generator →