#643589#643589

#643589 is a dark, vivid violet. Relative luminance 0.071; OKLCH L 42.9% C 0.138 H 307.4°. Best body text is #FFFFFF at 8.71:1 contrast (WCAG AA passes).

Color values

HEX	#643589
RGB	rgb(100, 53, 137)
HSL	hsl(274, 44%, 37%)
HSV	hsv(274, 61%, 54%)
CMYK	cmyk(27%, 61.3%, 0%, 46.3%)
CIE-LAB	lab(31.95, 37.31, -38.88)
CIE-LCH	lch(31.95, 53.89, 313.82°)
OKLab	oklab(42.93% 0.0837 -0.1097)
OKLCH	oklch(42.93% 0.138 307.4)
XYZ	xyz(11.0431, 7.0618, 24.4434)
Luminance	0.0706 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643589 #5A8935

analogous

#3A3589 #643589 #893584

triadic

#643589 #896435 #358964

tetradic

#643589 #893A35 #5A8935 #358489

square

#643589 #893A35 #5A8935 #358489

split-complementary

#643589 #848935 #35893A

monochromatic

#241331 #44245D #643589 #8446B5 #A171C8

Accessibility & contrast

On white

8.71

#643589 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#643589 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643589

8.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643589	#FFFFFF	#000000	##FFFFFF
##643589	1.00	8.71	2.41	8.71
#FFFFFF	8.71	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#11498C

Deuteranopia (green-blind)

#274C87

Tritanopia (blue-blind)

#5E455A

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #643589;
/* rgb */ color: rgb(100, 53, 137);
/* oklch */ color: oklch(42.9% 0.138 307.4);

Tailwind

colors: {
  custom: {
    50: '#936fac',
    500: '#643589',
    950: '#000000',
  },
}

SCSS

$custom: #643589;
$custom-light: #936fac;
$custom-dark: #000000;

JSON

{
  "hex": "#643589",
  "rgb": {
    "r": 100,
    "g": 53,
    "b": 137
  },
  "hsl": {
    "h": 273.571,
    "s": 44.211,
    "l": 37.255
  },
  "oklch": {
    "l": 0.42929,
    "c": 0.13799,
    "h": 307.4
  },
  "luminance": 0.07062
}

Semantic roles & 50–950 ramp

primary

#643589

secondary

#89B06A

accent

#D4548C

background

#F9F6FA

surface

#F2ECF4

border

#CCC7CE

text

#0D0710

muted

#7E7A7F

Preview Lab

Preview with #643589

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

Preview Lab → · Contrast checker → · Palette generator →