#643188#643188

#643188 is a dark, vivid violet. Relative luminance 0.067; OKLCH L 42.3% C 0.143 H 308.5°. Best body text is #FFFFFF at 8.99:1 contrast (WCAG AA passes).

Color values

HEX	#643188
RGB	rgb(100, 49, 136)
HSL	hsl(275, 47%, 36%)
HSV	hsv(275, 64%, 53%)
CMYK	cmyk(26.5%, 64%, 0%, 46.7%)
CIE-LAB	lab(31.08, 39.24, -39.66)
CIE-LCH	lch(31.08, 55.79, 314.69°)
OKLab	oklab(42.28% 0.089 -0.1119)
OKLCH	oklch(42.28% 0.143 308.5)
XYZ	xyz(10.7969, 6.6837, 24.0091)
Luminance	0.0668 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643188 #558831

analogous

#393188 #643188 #883181

triadic

#643188 #886431 #318864

tetradic

#643188 #883931 #558831 #318188

square

#643188 #883931 #558831 #318188

split-complementary

#643188 #818831 #318839

monochromatic

#22112E #43215B #643188 #8541B5 #A26AC9

Accessibility & contrast

On white

8.99

#643188 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.34

#643188 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643188

8.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643188	#FFFFFF	#000000	##FFFFFF
##643188	1.00	8.99	2.34	8.99
#FFFFFF	8.99	1.00	21.00	1.00
#000000	2.34	21.00	1.00	21.00
##FFFFFF	8.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#04478B

Deuteranopia (green-blind)

#234A86

Tritanopia (blue-blind)

#5F4258

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #643188;
/* rgb */ color: rgb(100, 49, 136);
/* oklch */ color: oklch(42.3% 0.143 308.5);

Tailwind

colors: {
  custom: {
    50: '#936cab',
    500: '#643188',
    950: '#000000',
  },
}

SCSS

$custom: #643188;
$custom-light: #936cab;
$custom-dark: #000000;

JSON

{
  "hex": "#643188",
  "rgb": {
    "r": 100,
    "g": 49,
    "b": 136
  },
  "hsl": {
    "h": 275.172,
    "s": 47.027,
    "l": 36.275
  },
  "oklch": {
    "l": 0.42275,
    "c": 0.14302,
    "h": 308.5
  },
  "luminance": 0.06684
}

Semantic roles & 50–950 ramp

primary

#643188

secondary

#84B164

accent

#D75188

background

#F9F6FA

surface

#F2EBF4

border

#CCC6CE

text

#0D0710

muted

#7E7A7F

Preview Lab

Preview with #643188

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

Preview Lab → · Contrast checker → · Palette generator →