#55178D#55178D

#55178D is a dark, vivid violet. Relative luminance 0.045; OKLCH L 37.7% C 0.176 H 301.8°. Best body text is #FFFFFF at 11.09:1 contrast (WCAG AA passes).

Color values

HEX	#55178D
RGB	rgb(85, 23, 141)
HSL	hsl(272, 72%, 32%)
HSV	hsv(272, 84%, 55%)
CMYK	cmyk(39.7%, 83.7%, 0%, 44.7%)
CIE-LAB	lab(25.16, 49.29, -52.46)
CIE-LCH	lch(25.16, 71.98, 313.22°)
OKLab	oklab(37.75% 0.093 -0.1499)
OKLCH	oklch(37.75% 0.176 301.8)
XYZ	xyz(8.8593, 4.4671, 25.5896)
Luminance	0.0447 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#55178D #4F8D17

analogous

#1A178D #55178D #8D178A

triadic

#55178D #8D5517 #178D55

tetradic

#55178D #8D1A17 #4F8D17 #178A8D

square

#55178D #8D1A17 #4F8D17 #178A8D

split-complementary

#55178D #8A8D17 #178D1A

monochromatic

#160624 #350E58 #55178D #7520C2 #933FE0

Accessibility & contrast

On white

11.09

#55178D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#55178D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #55178D

11.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##55178D	#FFFFFF	#000000	##FFFFFF
##55178D	1.00	11.09	1.89	11.09
#FFFFFF	11.09	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B90

Deuteranopia (green-blind)

#003B8B

Tritanopia (blue-blind)

#493853

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #55178d;
/* rgb */ color: rgb(85, 23, 141);
/* oklch */ color: oklch(37.7% 0.176 301.8);

Tailwind

colors: {
  custom: {
    50: '#8b5daf',
    500: '#55178d',
    950: '#000000',
  },
}

SCSS

$custom: #55178d;
$custom-light: #8b5daf;
$custom-dark: #000000;

JSON

{
  "hex": "#55178d",
  "rgb": {
    "r": 85,
    "g": 23,
    "b": 141
  },
  "hsl": {
    "h": 271.525,
    "s": 71.951,
    "l": 32.157
  },
  "oklch": {
    "l": 0.37749,
    "c": 0.17641,
    "h": 301.8
  },
  "luminance": 0.04467
}

Semantic roles & 50–950 ramp

primary

#55178D

secondary

#7DC040

accent

#EF398F

background

#F8F5FA

surface

#F0E9F5

border

#CBC5CF

text

#0D0510

muted

#7D797F

Preview Lab

Preview with #55178D

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

Preview Lab → · Contrast checker → · Palette generator →