#643DA0#643DA0

#643DA0 is a mid, vivid violet. Relative luminance 0.086; OKLCH L 45.8% C 0.154 H 298.2°. Best body text is #FFFFFF at 7.73:1 contrast (WCAG AA passes).

Color values

HEX	#643DA0
RGB	rgb(100, 61, 160)
HSL	hsl(264, 45%, 43%)
HSV	hsv(264, 62%, 63%)
CMYK	cmyk(37.5%, 61.9%, 0%, 37.3%)
CIE-LAB	lab(35.17, 38.80, -47.74)
CIE-LCH	lch(35.17, 61.52, 309.11°)
OKLab	oklab(45.77% 0.0728 -0.1357)
OKLCH	oklch(45.77% 0.154 298.2)
XYZ	xyz(13.2678, 8.5847, 34.2089)
Luminance	0.0858 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643DA0 #79A03D

analogous

#3D48A0 #643DA0 #953DA0

triadic

#643DA0 #A0643D #3DA064

tetradic

#643DA0 #A03D48 #79A03D #3DA095

square

#643DA0 #A03D48 #79A03D #3DA095

split-complementary

#643DA0 #A0953D #48A03D

monochromatic

#2D1B47 #482C74 #643DA0 #825AC0 #A486D1

Accessibility & contrast

On white

7.73

#643DA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.72

#643DA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643DA0

7.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643DA0	#FFFFFF	#000000	##FFFFFF
##643DA0	1.00	7.73	2.72	7.73
#FFFFFF	7.73	1.00	21.00	1.00
#000000	2.72	21.00	1.00	21.00
##FFFFFF	7.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053A3

Deuteranopia (green-blind)

#14529E

Tritanopia (blue-blind)

#565268

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #643da0;
/* rgb */ color: rgb(100, 61, 160);
/* oklch */ color: oklch(45.8% 0.154 298.2);

Tailwind

colors: {
  custom: {
    50: '#9474bd',
    500: '#643da0',
    950: '#000000',
  },
}

SCSS

$custom: #643da0;
$custom-light: #9474bd;
$custom-dark: #000000;

JSON

{
  "hex": "#643da0",
  "rgb": {
    "r": 100,
    "g": 61,
    "b": 160
  },
  "hsl": {
    "h": 263.636,
    "s": 44.796,
    "l": 43.333
  },
  "oklch": {
    "l": 0.45774,
    "c": 0.154,
    "h": 298.2
  },
  "luminance": 0.08585
}

Semantic roles & 50–950 ramp

primary

#643DA0

secondary

#A3BB7D

accent

#D453A2

background

#F9F7FB

surface

#F2EDF6

border

#CCC8D0

text

#0E0812

muted

#7E7B81

Preview Lab

Preview with #643DA0

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

Preview Lab → · Contrast checker → · Palette generator →