#643EBB#643EBB

#643EBB is a mid, vivid violet. Relative luminance 0.097; OKLCH L 48.0% C 0.186 H 291.8°. Best body text is #FFFFFF at 7.12:1 contrast (WCAG AA passes).

Color values

HEX	#643EBB
RGB	rgb(100, 62, 187)
HSL	hsl(258, 50%, 49%)
HSV	hsv(258, 67%, 73%)
CMYK	cmyk(46.5%, 66.8%, 0%, 26.7%)
CIE-LAB	lab(37.38, 45.70, -60.24)
CIE-LCH	lch(37.38, 75.61, 307.19°)
OKLab	oklab(48% 0.0691 -0.1724)
OKLCH	oklch(48% 0.186 291.8)
XYZ	xyz(15.9453, 9.7419, 48.0443)
Luminance	0.0974 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Bluey Purple

#6241C7

ΔE00 1.98

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643EBB #95BB3E

analogous

#3E57BB #643EBB #A33EBB

triadic

#643EBB #BB643E #3EBB64

tetradic

#643EBB #BB3E57 #95BB3E #3EBBA3

square

#643EBB #BB3E57 #95BB3E #3EBBA3

split-complementary

#643EBB #BBA33E #57BB3E

monochromatic

#33205F #4B2F8D #643EBB #8769CD #AC97DC

Accessibility & contrast

On white

7.12

#643EBB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.95

#643EBB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643EBB

7.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643EBB	#FFFFFF	#000000	##FFFFFF
##643EBB	1.00	7.12	2.95	7.12
#FFFFFF	7.12	1.00	21.00	1.00
#000000	2.95	21.00	1.00	21.00
##FFFFFF	7.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ABF

Deuteranopia (green-blind)

#0055B8

Tritanopia (blue-blind)

#495C77

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #643ebb;
/* rgb */ color: rgb(100, 62, 187);
/* oklch */ color: oklch(48.0% 0.186 291.8);

Tailwind

colors: {
  custom: {
    50: '#9776d0',
    500: '#643ebb',
    950: '#000000',
  },
}

SCSS

$custom: #643ebb;
$custom-light: #9776d0;
$custom-dark: #000000;

JSON

{
  "hex": "#643ebb",
  "rgb": {
    "r": 100,
    "g": 62,
    "b": 187
  },
  "hsl": {
    "h": 258.24,
    "s": 50.201,
    "l": 48.824
  },
  "oklch": {
    "l": 0.47998,
    "c": 0.18578,
    "h": 291.8
  },
  "luminance": 0.09742
}

Semantic roles & 50–950 ramp

primary

#643EBB

secondary

#B6C88D

accent

#DA4EAF

background

#F9F7FC

surface

#F2EDF9

border

#CCC8D2

text

#0E0914

muted

#7E7B82

Preview Lab

Preview with #643EBB

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

Preview Lab → · Contrast checker → · Palette generator →