#643BB8#643BB8

#643BB8 is a mid, vivid violet. Relative luminance 0.093; OKLCH L 47.3% C 0.186 H 293.0°. Best body text is #FFFFFF at 7.34:1 contrast (WCAG AA passes).

Color values

HEX	#643BB8
RGB	rgb(100, 59, 184)
HSL	hsl(260, 51%, 48%)
HSV	hsv(260, 68%, 72%)
CMYK	cmyk(45.7%, 67.9%, 0%, 27.8%)
CIE-LAB	lab(36.55, 46.48, -59.81)
CIE-LCH	lch(36.55, 75.74, 307.85°)
OKLab	oklab(47.33% 0.0726 -0.1712)
OKLCH	oklch(47.33% 0.186 293)
XYZ	xyz(15.4688, 9.2975, 46.3177)
Luminance	0.0930 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Bluey Purple

#6241C7

ΔE00 2.74

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643BB8 #8FB83B

analogous

#3B51B8 #643BB8 #A23BB8

triadic

#643BB8 #B8643B #3BB864

tetradic

#643BB8 #B83B51 #8FB83B #3BB8A2

square

#643BB8 #B83B51 #8FB83B #3BB8A2

split-complementary

#643BB8 #B8A23B #51B83B

monochromatic

#321D5B #4B2C8A #643BB8 #8663CD #AA92DC

Accessibility & contrast

On white

7.34

#643BB8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.86

#643BB8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643BB8

7.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643BB8	#FFFFFF	#000000	##FFFFFF
##643BB8	1.00	7.34	2.86	7.34
#FFFFFF	7.34	1.00	21.00	1.00
#000000	2.86	21.00	1.00	21.00
##FFFFFF	7.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058BC

Deuteranopia (green-blind)

#0054B5

Tritanopia (blue-blind)

#4B5A75

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #643bb8;
/* rgb */ color: rgb(100, 59, 184);
/* oklch */ color: oklch(47.3% 0.186 293.0);

Tailwind

colors: {
  custom: {
    50: '#9774ce',
    500: '#643bb8',
    950: '#000000',
  },
}

SCSS

$custom: #643bb8;
$custom-light: #9774ce;
$custom-dark: #000000;

JSON

{
  "hex": "#643bb8",
  "rgb": {
    "r": 100,
    "g": 59,
    "b": 184
  },
  "hsl": {
    "h": 259.68,
    "s": 51.44,
    "l": 47.647
  },
  "oklch": {
    "l": 0.47332,
    "c": 0.18595,
    "h": 293
  },
  "luminance": 0.09298
}

Semantic roles & 50–950 ramp

primary

#643BB8

secondary

#B2C788

accent

#DB4DAC

background

#F9F7FC

surface

#F2EDF9

border

#CCC8D2

text

#0E0814

muted

#7E7B82

Preview Lab

Preview with #643BB8

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

Preview Lab → · Contrast checker → · Palette generator →