#643BA6#643BA6

#643BA6 is a mid, vivid violet. Relative luminance 0.086; OKLCH L 45.9% C 0.164 H 297.1°. Best body text is #FFFFFF at 7.73:1 contrast (WCAG AA passes).

Color values

HEX	#643BA6
RGB	rgb(100, 59, 166)
HSL	hsl(263, 48%, 44%)
HSV	hsv(263, 64%, 65%)
CMYK	cmyk(39.8%, 64.5%, 0%, 34.9%)
CIE-LAB	lab(35.18, 41.55, -51.33)
CIE-LCH	lch(35.18, 66.03, 308.99°)
OKLab	oklab(45.92% 0.0748 -0.1462)
OKLCH	oklch(45.92% 0.164 297.1)
XYZ	xyz(13.7007, 8.5902, 37.0052)
Luminance	0.0859 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643BA6 #7DA63B

analogous

#3B47A6 #643BA6 #9A3BA6

triadic

#643BA6 #A6643B #3BA664

tetradic

#643BA6 #A63B47 #7DA63B #3BA69A

square

#643BA6 #A63B47 #7DA63B #3BA69A

split-complementary

#643BA6 #A69A3B #47A63B

monochromatic

#2E1B4C #492B79 #643BA6 #835AC4 #A587D4

Accessibility & contrast

On white

7.73

#643BA6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.72

#643BA6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643BA6

7.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643BA6	#FFFFFF	#000000	##FFFFFF
##643BA6	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)

#0053A9

Deuteranopia (green-blind)

#0051A4

Tritanopia (blue-blind)

#54536B

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #643ba6;
/* rgb */ color: rgb(100, 59, 166);
/* oklch */ color: oklch(45.9% 0.164 297.1);

Tailwind

colors: {
  custom: {
    50: '#9573c1',
    500: '#643ba6',
    950: '#000000',
  },
}

SCSS

$custom: #643ba6;
$custom-light: #9573c1;
$custom-dark: #000000;

JSON

{
  "hex": "#643ba6",
  "rgb": {
    "r": 100,
    "g": 59,
    "b": 166
  },
  "hsl": {
    "h": 262.991,
    "s": 47.556,
    "l": 44.118
  },
  "oklch": {
    "l": 0.45917,
    "c": 0.16425,
    "h": 297.1
  },
  "luminance": 0.0859
}

Semantic roles & 50–950 ramp

primary

#643BA6

secondary

#A6BF7E

accent

#D751A4

background

#F9F7FC

surface

#F2EDF8

border

#CCC8D1

text

#0E0812

muted

#7E7B81

Preview Lab

Preview with #643BA6

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

Preview Lab → · Contrast checker → · Palette generator →