#551888#551888

#551888 is a dark, vivid violet. Relative luminance 0.044; OKLCH L 37.4% C 0.170 H 303.4°. Best body text is #FFFFFF at 11.22:1 contrast (WCAG AA passes).

Color values

HEX	#551888
RGB	rgb(85, 24, 136)
HSL	hsl(273, 70%, 31%)
HSV	hsv(273, 82%, 53%)
CMYK	cmyk(37.5%, 82.4%, 0%, 46.7%)
CIE-LAB	lab(24.83, 47.73, -49.87)
CIE-LCH	lch(24.83, 69.03, 313.74°)
OKLab	oklab(37.39% 0.0938 -0.1423)
OKLCH	oklch(37.39% 0.17 303.4)
XYZ	xyz(8.5158, 4.3621, 23.6811)
Luminance	0.0436 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Indigo

#4B0082

ΔE00 3.34

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#551888 #4B8818

analogous

#1D1888 #551888 #881883

triadic

#551888 #885518 #188855

tetradic

#551888 #881D18 #4B8818 #188388

square

#551888 #881D18 #4B8818 #188388

split-complementary

#551888 #838818 #18881D

monochromatic

#140620 #340F54 #551888 #7621BC #943EDD

Accessibility & contrast

On white

11.22

#551888 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#551888 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #551888

11.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##551888	#FFFFFF	#000000	##FFFFFF
##551888	1.00	11.22	1.87	11.22
#FFFFFF	11.22	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A8B

Deuteranopia (green-blind)

#003B86

Tritanopia (blue-blind)

#4A3751

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #551888;
/* rgb */ color: rgb(85, 24, 136);
/* oklch */ color: oklch(37.4% 0.170 303.4);

Tailwind

colors: {
  custom: {
    50: '#8a5dac',
    500: '#551888',
    950: '#000000',
  },
}

SCSS

$custom: #551888;
$custom-light: #8a5dac;
$custom-dark: #000000;

JSON

{
  "hex": "#551888",
  "rgb": {
    "r": 85,
    "g": 24,
    "b": 136
  },
  "hsl": {
    "h": 272.679,
    "s": 70,
    "l": 31.373
  },
  "oklch": {
    "l": 0.37385,
    "c": 0.17046,
    "h": 303.4
  },
  "luminance": 0.04362
}

Semantic roles & 50–950 ramp

primary

#551888

secondary

#78BC40

accent

#ED3B8C

background

#F8F5FA

surface

#F0E9F4

border

#CBC5CE

text

#0C0510

muted

#7D797F

Preview Lab

Preview with #551888

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

Preview Lab → · Contrast checker → · Palette generator →