#55178E#55178E

#55178E is a dark, vivid violet. Relative luminance 0.045; OKLCH L 37.8% C 0.177 H 301.5°. Best body text is #FFFFFF at 11.06:1 contrast (WCAG AA passes).

Color values

HEX	#55178E
RGB	rgb(85, 23, 142)
HSL	hsl(271, 72%, 32%)
HSV	hsv(271, 84%, 56%)
CMYK	cmyk(40.1%, 83.8%, 0%, 44.3%)
CIE-LAB	lab(25.25, 49.53, -52.93)
CIE-LCH	lch(25.25, 72.49, 313.10°)
OKLab	oklab(37.84% 0.0927 -0.1513)
OKLCH	oklch(37.84% 0.177 301.5)
XYZ	xyz(8.9340, 4.4970, 25.9833)
Luminance	0.0450 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#55178E #508E17

analogous

#1A178E #55178E #8E178B

triadic

#55178E #8E5517 #178E55

tetradic

#55178E #8E1A17 #508E17 #178B8E

square

#55178E #8E1A17 #508E17 #178B8E

split-complementary

#55178E #8B8E17 #178E1A

monochromatic

#160625 #350E59 #55178E #7520C3 #933FE0

Accessibility & contrast

On white

11.06

#55178E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#55178E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #55178E

11.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##55178E	#FFFFFF	#000000	##FFFFFF
##55178E	1.00	11.06	1.90	11.06
#FFFFFF	11.06	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B91

Deuteranopia (green-blind)

#003B8C

Tritanopia (blue-blind)

#483954

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #55178e;
/* rgb */ color: rgb(85, 23, 142);
/* oklch */ color: oklch(37.8% 0.177 301.5);

Tailwind

colors: {
  custom: {
    50: '#8b5db0',
    500: '#55178e',
    950: '#000000',
  },
}

SCSS

$custom: #55178e;
$custom-light: #8b5db0;
$custom-dark: #000000;

JSON

{
  "hex": "#55178e",
  "rgb": {
    "r": 85,
    "g": 23,
    "b": 142
  },
  "hsl": {
    "h": 271.261,
    "s": 72.121,
    "l": 32.353
  },
  "oklch": {
    "l": 0.37841,
    "c": 0.17742,
    "h": 301.5
  },
  "luminance": 0.04497
}

Semantic roles & 50–950 ramp

primary

#55178E

secondary

#7EC040

accent

#EF3990

background

#F9F5FB

surface

#F1E9F6

border

#CBC5D0

text

#0D0511

muted

#7E7980

Preview Lab

Preview with #55178E

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

Preview Lab → · Contrast checker → · Palette generator →