#551788#551788

#551788 is a dark, vivid violet. Relative luminance 0.043; OKLCH L 37.3% C 0.171 H 303.5°. Best body text is #FFFFFF at 11.26:1 contrast (WCAG AA passes).

Color values

HEX	#551788
RGB	rgb(85, 23, 136)
HSL	hsl(273, 71%, 31%)
HSV	hsv(273, 83%, 53%)
CMYK	cmyk(37.5%, 83.1%, 0%, 46.7%)
CIE-LAB	lab(24.71, 48.09, -50.08)
CIE-LCH	lch(24.71, 69.43, 313.84°)
OKLab	oklab(37.3% 0.0946 -0.1429)
OKLCH	oklch(37.3% 0.171 303.5)
XYZ	xyz(8.4956, 4.3217, 23.6744)
Luminance	0.0432 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Indigo

#4B0082

ΔE00 3.22

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#551788 #4A8817

analogous

#1C1788 #551788 #881782

triadic

#551788 #885517 #178855

tetradic

#551788 #881C17 #4A8817 #178288

square

#551788 #881C17 #4A8817 #178288

split-complementary

#551788 #828817 #17881C

monochromatic

#14051F #340E54 #551788 #7620BC #953BDE

Accessibility & contrast

On white

11.26

#551788 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#551788 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #551788

11.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##551788	#FFFFFF	#000000	##FFFFFF
##551788	1.00	11.26	1.86	11.26
#FFFFFF	11.26	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00398B

Deuteranopia (green-blind)

#003A86

Tritanopia (blue-blind)

#4A3650

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #551788;
/* rgb */ color: rgb(85, 23, 136);
/* oklch */ color: oklch(37.3% 0.171 303.5);

Tailwind

colors: {
  custom: {
    50: '#8b5dac',
    500: '#551788',
    950: '#000000',
  },
}

SCSS

$custom: #551788;
$custom-light: #8b5dac;
$custom-dark: #000000;

JSON

{
  "hex": "#551788",
  "rgb": {
    "r": 85,
    "g": 23,
    "b": 136
  },
  "hsl": {
    "h": 272.92,
    "s": 71.069,
    "l": 31.176
  },
  "oklch": {
    "l": 0.37297,
    "c": 0.1714,
    "h": 303.5
  },
  "luminance": 0.04322
}

Semantic roles & 50–950 ramp

primary

#551788

secondary

#77BC3F

accent

#EE3A8B

background

#F8F5FA

surface

#F0E9F4

border

#CBC5CE

text

#0C0510

muted

#7D797F

Preview Lab

Preview with #551788

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

Preview Lab → · Contrast checker → · Palette generator →