#643BA0#643BA0

#643BA0 is a mid, vivid violet. Relative luminance 0.084; OKLCH L 45.5% C 0.157 H 298.7°. Best body text is #FFFFFF at 7.85:1 contrast (WCAG AA passes).

Color values

HEX	#643BA0
RGB	rgb(100, 59, 160)
HSL	hsl(264, 46%, 43%)
HSV	hsv(264, 63%, 63%)
CMYK	cmyk(37.5%, 63.1%, 0%, 37.3%)
CIE-LAB	lab(34.75, 39.93, -48.41)
CIE-LCH	lch(34.75, 62.75, 309.51°)
OKLab	oklab(45.47% 0.0753 -0.1377)
OKLCH	oklch(45.47% 0.157 298.7)
XYZ	xyz(13.1631, 8.3752, 34.1740)
Luminance	0.0838 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.77

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643BA0 #77A03B

analogous

#3B45A0 #643BA0 #963BA0

triadic

#643BA0 #A0643B #3BA064

tetradic

#643BA0 #A03B45 #77A03B #3BA096

square

#643BA0 #A03B45 #77A03B #3BA096

split-complementary

#643BA0 #A0963B #45A03B

monochromatic

#2C1A47 #482B73 #643BA0 #8257C1 #A384D2

Accessibility & contrast

On white

7.85

#643BA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.68

#643BA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643BA0

7.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643BA0	#FFFFFF	#000000	##FFFFFF
##643BA0	1.00	7.85	2.68	7.85
#FFFFFF	7.85	1.00	21.00	1.00
#000000	2.68	21.00	1.00	21.00
##FFFFFF	7.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052A3

Deuteranopia (green-blind)

#0E519E

Tritanopia (blue-blind)

#565168

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #643ba0;
/* rgb */ color: rgb(100, 59, 160);
/* oklch */ color: oklch(45.5% 0.157 298.7);

Tailwind

colors: {
  custom: {
    50: '#9473bd',
    500: '#643ba0',
    950: '#000000',
  },
}

SCSS

$custom: #643ba0;
$custom-light: #9473bd;
$custom-dark: #000000;

JSON

{
  "hex": "#643ba0",
  "rgb": {
    "r": 100,
    "g": 59,
    "b": 160
  },
  "hsl": {
    "h": 264.356,
    "s": 46.119,
    "l": 42.941
  },
  "oklch": {
    "l": 0.45469,
    "c": 0.15691,
    "h": 298.7
  },
  "luminance": 0.08375
}

Semantic roles & 50–950 ramp

primary

#643BA0

secondary

#A1BC7B

accent

#D652A0

background

#F9F7FB

surface

#F2EDF6

border

#CCC8D0

text

#0E0812

muted

#7E7B81

Preview Lab

Preview with #643BA0

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

Preview Lab → · Contrast checker → · Palette generator →