#55178F#55178F

#55178F is a dark, vivid violet. Relative luminance 0.045; OKLCH L 37.9% C 0.178 H 301.2°. Best body text is #FFFFFF at 11.02:1 contrast (WCAG AA passes).

Color values

HEX	#55178F
RGB	rgb(85, 23, 143)
HSL	hsl(271, 72%, 33%)
HSV	hsv(271, 84%, 56%)
CMYK	cmyk(40.6%, 83.9%, 0%, 43.9%)
CIE-LAB	lab(25.34, 49.77, -53.40)
CIE-LCH	lch(25.34, 73.00, 312.99°)
OKLab	oklab(37.93% 0.0923 -0.1527)
OKLCH	oklch(37.93% 0.178 301.2)
XYZ	xyz(9.0094, 4.5272, 26.3805)
Luminance	0.0453 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#55178F #518F17

analogous

#19178F #55178F #8F178D

triadic

#55178F #8F5517 #178F55

tetradic

#55178F #8F1917 #518F17 #178D8F

square

#55178F #8F1917 #518F17 #178D8F

split-complementary

#55178F #8D8F17 #178F19

monochromatic

#160626 #360F5A #55178F #741FC4 #9340E0

Accessibility & contrast

On white

11.02

#55178F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#55178F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #55178F

11.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##55178F	#FFFFFF	#000000	##FFFFFF
##55178F	1.00	11.02	1.91	11.02
#FFFFFF	11.02	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	11.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B92

Deuteranopia (green-blind)

#003B8D

Tritanopia (blue-blind)

#483955

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #55178f;
/* rgb */ color: rgb(85, 23, 143);
/* oklch */ color: oklch(37.9% 0.178 301.2);

Tailwind

colors: {
  custom: {
    50: '#8b5db1',
    500: '#55178f',
    950: '#000000',
  },
}

SCSS

$custom: #55178f;
$custom-light: #8b5db1;
$custom-dark: #000000;

JSON

{
  "hex": "#55178f",
  "rgb": {
    "r": 85,
    "g": 23,
    "b": 143
  },
  "hsl": {
    "h": 271,
    "s": 72.289,
    "l": 32.549
  },
  "oklch": {
    "l": 0.37933,
    "c": 0.17842,
    "h": 301.2
  },
  "luminance": 0.04527
}

Semantic roles & 50–950 ramp

primary

#55178F

secondary

#7FC141

accent

#EF3991

background

#F9F5FB

surface

#F1E9F6

border

#CBC5D0

text

#0D0511

muted

#7E7980

Preview Lab

Preview with #55178F

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

Preview Lab → · Contrast checker → · Palette generator →