#643091#643091

#643091 is a dark, vivid violet. Relative luminance 0.069; OKLCH L 42.8% C 0.155 H 305.4°. Best body text is #FFFFFF at 8.85:1 contrast (WCAG AA passes).

Color values

HEX	#643091
RGB	rgb(100, 48, 145)
HSL	hsl(272, 50%, 38%)
HSV	hsv(272, 67%, 57%)
CMYK	cmyk(31%, 66.9%, 0%, 43.1%)
CIE-LAB	lab(31.50, 41.98, -44.53)
CIE-LCH	lch(31.50, 61.20, 313.31°)
OKLab	oklab(42.78% 0.0897 -0.1262)
OKLCH	oklch(42.78% 0.155 305.4)
XYZ	xyz(11.4222, 6.8676, 27.5064)
Luminance	0.0687 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#643091 #5D9130

analogous

#333091 #643091 #91308D

triadic

#643091 #916430 #309164

tetradic

#643091 #913330 #5D9130 #308D91

square

#643091 #913330 #5D9130 #308D91

split-complementary

#643091 #8D9130 #309133

monochromatic

#251235 #442163 #643091 #843FBF #A16DCF

Accessibility & contrast

On white

8.85

#643091 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#643091 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #643091

8.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##643091	#FFFFFF	#000000	##FFFFFF
##643091	1.00	8.85	2.37	8.85
#FFFFFF	8.85	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004994

Deuteranopia (green-blind)

#154A8F

Tritanopia (blue-blind)

#5C455C

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #643091;
/* rgb */ color: rgb(100, 48, 145);
/* oklch */ color: oklch(42.8% 0.155 305.4);

Tailwind

colors: {
  custom: {
    50: '#946cb2',
    500: '#643091',
    950: '#000000',
  },
}

SCSS

$custom: #643091;
$custom-light: #946cb2;
$custom-dark: #000000;

JSON

{
  "hex": "#643091",
  "rgb": {
    "r": 100,
    "g": 48,
    "b": 145
  },
  "hsl": {
    "h": 272.165,
    "s": 50.259,
    "l": 37.843
  },
  "oklch": {
    "l": 0.42782,
    "c": 0.15484,
    "h": 305.4
  },
  "luminance": 0.06868
}

Semantic roles & 50–950 ramp

primary

#643091

secondary

#8CB667

accent

#DA4E8F

background

#F9F6FB

surface

#F2EBF6

border

#CCC6D0

text

#0E0711

muted

#7E7A80

Preview Lab

Preview with #643091

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

Preview Lab → · Contrast checker → · Palette generator →