#643DA1#643DA1

#643DA1 is a mid, vivid violet. Relative luminance 0.086; OKLCH L 45.8% C 0.155 H 298.0°. Best body text is #FFFFFF at 7.71:1 contrast (WCAG AA passes).

Color values

HEX	#643DA1
RGB	rgb(100, 61, 161)
HSL	hsl(263, 45%, 44%)
HSV	hsv(263, 62%, 63%)
CMYK	cmyk(37.9%, 62.1%, 0%, 36.9%)
CIE-LAB	lab(35.24, 39.07, -48.23)
CIE-LCH	lch(35.24, 62.07, 309.02°)
OKLab	oklab(45.85% 0.0728 -0.1371)
OKLCH	oklch(45.85% 0.155 298)
XYZ	xyz(13.3557, 8.6198, 34.6714)
Luminance	0.0862 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643DA1 #7AA13D

analogous

#3D48A1 #643DA1 #963DA1

triadic

#643DA1 #A1643D #3DA164

tetradic

#643DA1 #A13D48 #7AA13D #3DA196

square

#643DA1 #A13D48 #7AA13D #3DA196

split-complementary

#643DA1 #A1963D #48A13D

monochromatic

#2D1B48 #482C75 #643DA1 #825BC1 #A487D1

Accessibility & contrast

On white

7.71

#643DA1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.72

#643DA1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643DA1

7.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643DA1	#FFFFFF	#000000	##FFFFFF
##643DA1	1.00	7.71	2.72	7.71
#FFFFFF	7.71	1.00	21.00	1.00
#000000	2.72	21.00	1.00	21.00
##FFFFFF	7.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053A4

Deuteranopia (green-blind)

#11529F

Tritanopia (blue-blind)

#565369

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #643da1;
/* rgb */ color: rgb(100, 61, 161);
/* oklch */ color: oklch(45.8% 0.155 298.0);

Tailwind

colors: {
  custom: {
    50: '#9474bd',
    500: '#643da1',
    950: '#000000',
  },
}

SCSS

$custom: #643da1;
$custom-light: #9474bd;
$custom-dark: #000000;

JSON

{
  "hex": "#643da1",
  "rgb": {
    "r": 100,
    "g": 61,
    "b": 161
  },
  "hsl": {
    "h": 263.4,
    "s": 45.045,
    "l": 43.529
  },
  "oklch": {
    "l": 0.45847,
    "c": 0.15525,
    "h": 298
  },
  "luminance": 0.0862
}

Semantic roles & 50–950 ramp

primary

#643DA1

secondary

#A4BC7E

accent

#D553A2

background

#F9F7FB

surface

#F2EDF7

border

#CCC8D0

text

#0E0812

muted

#7E7B81

Preview Lab

Preview with #643DA1

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

Preview Lab → · Contrast checker → · Palette generator →