#643BA3#643BA3

#643BA3 is a mid, vivid violet. Relative luminance 0.085; OKLCH L 45.7% C 0.161 H 297.9°. Best body text is #FFFFFF at 7.79:1 contrast (WCAG AA passes).

Color values

HEX	#643BA3
RGB	rgb(100, 59, 163)
HSL	hsl(264, 47%, 44%)
HSV	hsv(264, 64%, 64%)
CMYK	cmyk(38.7%, 63.8%, 0%, 36.1%)
CIE-LAB	lab(34.97, 40.74, -49.87)
CIE-LCH	lch(34.97, 64.40, 309.24°)
OKLab	oklab(45.69% 0.075 -0.142)
OKLCH	oklch(45.69% 0.161 297.9)
XYZ	xyz(13.4287, 8.4814, 35.5728)
Luminance	0.0848 (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

#643BA3 #7AA33B

analogous

#3B46A3 #643BA3 #983BA3

triadic

#643BA3 #A3643B #3BA364

tetradic

#643BA3 #A33B46 #7AA33B #3BA398

square

#643BA3 #A33B46 #7AA33B #3BA398

split-complementary

#643BA3 #A3983B #46A33B

monochromatic

#2D1A49 #482B76 #643BA3 #8258C3 #A485D3

Accessibility & contrast

On white

7.79

#643BA3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.70

#643BA3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643BA3

7.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643BA3	#FFFFFF	#000000	##FFFFFF
##643BA3	1.00	7.79	2.70	7.79
#FFFFFF	7.79	1.00	21.00	1.00
#000000	2.70	21.00	1.00	21.00
##FFFFFF	7.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052A6

Deuteranopia (green-blind)

#0351A1

Tritanopia (blue-blind)

#555269

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #643ba3;
/* rgb */ color: rgb(100, 59, 163);
/* oklch */ color: oklch(45.7% 0.161 297.9);

Tailwind

colors: {
  custom: {
    50: '#9573bf',
    500: '#643ba3',
    950: '#000000',
  },
}

SCSS

$custom: #643ba3;
$custom-light: #9573bf;
$custom-dark: #000000;

JSON

{
  "hex": "#643ba3",
  "rgb": {
    "r": 100,
    "g": 59,
    "b": 163
  },
  "hsl": {
    "h": 263.654,
    "s": 46.847,
    "l": 43.529
  },
  "oklch": {
    "l": 0.45692,
    "c": 0.16058,
    "h": 297.9
  },
  "luminance": 0.08482
}

Semantic roles & 50–950 ramp

primary

#643BA3

secondary

#A4BD7D

accent

#D651A2

background

#F9F7FB

surface

#F2EDF7

border

#CCC8D0

text

#0E0812

muted

#7E7B81

Preview Lab

Preview with #643BA3

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

Preview Lab → · Contrast checker → · Palette generator →