#643CA1#643CA1

#643CA1 is a mid, vivid violet. Relative luminance 0.085; OKLCH L 45.7% C 0.157 H 298.2°. Best body text is #FFFFFF at 7.77:1 contrast (WCAG AA passes).

Color values

HEX	#643CA1
RGB	rgb(100, 60, 161)
HSL	hsl(264, 46%, 43%)
HSV	hsv(264, 63%, 63%)
CMYK	cmyk(37.9%, 62.7%, 0%, 36.9%)
CIE-LAB	lab(35.03, 39.64, -48.57)
CIE-LCH	lch(35.03, 62.69, 309.22°)
OKLab	oklab(45.69% 0.074 -0.1381)
OKLCH	oklch(45.69% 0.157 298.2)
XYZ	xyz(13.3028, 8.5141, 34.6538)
Luminance	0.0851 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.61

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643CA1 #79A13C

analogous

#3C47A1 #643CA1 #963CA1

triadic

#643CA1 #A1643C #3CA164

tetradic

#643CA1 #A13C47 #79A13C #3CA196

square

#643CA1 #A13C47 #79A13C #3CA196

split-complementary

#643CA1 #A1963C #47A13C

monochromatic

#2D1B48 #482B74 #643CA1 #8259C1 #A486D2

Accessibility & contrast

On white

7.77

#643CA1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.70

#643CA1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643CA1

7.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643CA1	#FFFFFF	#000000	##FFFFFF
##643CA1	1.00	7.77	2.70	7.77
#FFFFFF	7.77	1.00	21.00	1.00
#000000	2.70	21.00	1.00	21.00
##FFFFFF	7.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053A4

Deuteranopia (green-blind)

#0E519F

Tritanopia (blue-blind)

#565269

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #643ca1;
/* rgb */ color: rgb(100, 60, 161);
/* oklch */ color: oklch(45.7% 0.157 298.2);

Tailwind

colors: {
  custom: {
    50: '#9574bd',
    500: '#643ca1',
    950: '#000000',
  },
}

SCSS

$custom: #643ca1;
$custom-light: #9574bd;
$custom-dark: #000000;

JSON

{
  "hex": "#643ca1",
  "rgb": {
    "r": 100,
    "g": 60,
    "b": 161
  },
  "hsl": {
    "h": 263.762,
    "s": 45.701,
    "l": 43.333
  },
  "oklch": {
    "l": 0.45694,
    "c": 0.1567,
    "h": 298.2
  },
  "luminance": 0.08514
}

Semantic roles & 50–950 ramp

primary

#643CA1

secondary

#A3BC7D

accent

#D552A2

background

#F9F7FB

surface

#F2EDF7

border

#CCC8D0

text

#0E0812

muted

#7E7B81

Preview Lab

Preview with #643CA1

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

Preview Lab → · Contrast checker → · Palette generator →