#55178A#55178A

#55178A is a dark, vivid violet. Relative luminance 0.044; OKLCH L 37.5% C 0.173 H 302.8°. Best body text is #FFFFFF at 11.20:1 contrast (WCAG AA passes).

Color values

HEX	#55178A
RGB	rgb(85, 23, 138)
HSL	hsl(272, 71%, 32%)
HSV	hsv(272, 83%, 54%)
CMYK	cmyk(38.4%, 83.3%, 0%, 45.9%)
CIE-LAB	lab(24.89, 48.57, -51.04)
CIE-LCH	lch(24.89, 70.45, 313.58°)
OKLab	oklab(37.48% 0.094 -0.1457)
OKLCH	oklch(37.48% 0.173 302.8)
XYZ	xyz(8.6391, 4.3791, 24.4299)
Luminance	0.0438 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Indigo

#4B0082

ΔE00 3.28

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#55178A #4C8A17

analogous

#1C178A #55178A #8A1786

triadic

#55178A #8A5517 #178A55

tetradic

#55178A #8A1C17 #4C8A17 #17868A

square

#55178A #8A1C17 #4C8A17 #17868A

split-complementary

#55178A #868A17 #178A1C

monochromatic

#140621 #350E56 #55178A #7520BE #943DDF

Accessibility & contrast

On white

11.20

#55178A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#55178A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #55178A

11.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##55178A	#FFFFFF	#000000	##FFFFFF
##55178A	1.00	11.20	1.88	11.20
#FFFFFF	11.20	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A8D

Deuteranopia (green-blind)

#003B88

Tritanopia (blue-blind)

#4A3752

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #55178a;
/* rgb */ color: rgb(85, 23, 138);
/* oklch */ color: oklch(37.5% 0.173 302.8);

Tailwind

colors: {
  custom: {
    50: '#8b5dad',
    500: '#55178a',
    950: '#000000',
  },
}

SCSS

$custom: #55178a;
$custom-light: #8b5dad;
$custom-dark: #000000;

JSON

{
  "hex": "#55178a",
  "rgb": {
    "r": 85,
    "g": 23,
    "b": 138
  },
  "hsl": {
    "h": 272.348,
    "s": 71.429,
    "l": 31.569
  },
  "oklch": {
    "l": 0.37477,
    "c": 0.1734,
    "h": 302.8
  },
  "luminance": 0.04379
}

Semantic roles & 50–950 ramp

primary

#55178A

secondary

#79BE3F

accent

#EE3A8D

background

#F8F5FA

surface

#F0E9F4

border

#CBC5CE

text

#0D0510

muted

#7D797F

Preview Lab

Preview with #55178A

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

Preview Lab → · Contrast checker → · Palette generator →