#643DBC#643DBC

#643DBC is a mid, vivid violet. Relative luminance 0.097; OKLCH L 47.9% C 0.188 H 291.8°. Best body text is #FFFFFF at 7.15:1 contrast (WCAG AA passes).

Color values

HEX	#643DBC
RGB	rgb(100, 61, 188)
HSL	hsl(258, 51%, 49%)
HSV	hsv(258, 68%, 74%)
CMYK	cmyk(46.8%, 67.6%, 0%, 26.3%)
CIE-LAB	lab(37.26, 46.52, -61.02)
CIE-LCH	lch(37.26, 76.73, 307.32°)
OKLab	oklab(47.94% 0.07 -0.1747)
OKLCH	oklch(47.94% 0.188 291.8)
XYZ	xyz(15.9988, 9.6771, 48.5921)
Luminance	0.0968 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Bluey Purple

#6241C7

ΔE00 1.97

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643DBC #95BC3D

analogous

#3D56BC #643DBC #A43DBC

triadic

#643DBC #BC643D #3DBC64

tetradic

#643DBC #BC3D56 #95BC3D #3DBCA4

square

#643DBC #BC3D56 #95BC3D #3DBCA4

split-complementary

#643DBC #BCA43D #56BC3D

monochromatic

#331F60 #4B2E8E #643DBC #8768CE #AC96DD

Accessibility & contrast

On white

7.15

#643DBC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.94

#643DBC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643DBC

7.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643DBC	#FFFFFF	#000000	##FFFFFF
##643DBC	1.00	7.15	2.94	7.15
#FFFFFF	7.15	1.00	21.00	1.00
#000000	2.94	21.00	1.00	21.00
##FFFFFF	7.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005AC0

Deuteranopia (green-blind)

#0055B9

Tritanopia (blue-blind)

#495C77

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #643dbc;
/* rgb */ color: rgb(100, 61, 188);
/* oklch */ color: oklch(47.9% 0.188 291.8);

Tailwind

colors: {
  custom: {
    50: '#9875d1',
    500: '#643dbc',
    950: '#000000',
  },
}

SCSS

$custom: #643dbc;
$custom-light: #9875d1;
$custom-dark: #000000;

JSON

{
  "hex": "#643dbc",
  "rgb": {
    "r": 100,
    "g": 61,
    "b": 188
  },
  "hsl": {
    "h": 258.425,
    "s": 51.004,
    "l": 48.824
  },
  "oklch": {
    "l": 0.47937,
    "c": 0.18824,
    "h": 291.8
  },
  "luminance": 0.09678
}

Semantic roles & 50–950 ramp

primary

#643DBC

secondary

#B6C98C

accent

#DA4DAF

background

#F9F7FD

surface

#F2EDFA

border

#CCC8D3

text

#0E0814

muted

#7E7B83

Preview Lab

Preview with #643DBC

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

Preview Lab → · Contrast checker → · Palette generator →