#551D83#551D83

#551D83 is a dark, vivid violet. Relative luminance 0.044; OKLCH L 37.4% C 0.160 H 304.6°. Best body text is #FFFFFF at 11.11:1 contrast (WCAG AA passes).

Color values

HEX	#551D83
RGB	rgb(85, 29, 131)
HSL	hsl(273, 64%, 31%)
HSV	hsv(273, 78%, 51%)
CMYK	cmyk(35.1%, 77.9%, 0%, 48.6%)
CIE-LAB	lab(25.10, 44.50, -46.30)
CIE-LCH	lch(25.10, 64.21, 313.86°)
OKLab	oklab(37.44% 0.0908 -0.1318)
OKLCH	oklch(37.44% 0.16 304.6)
XYZ	xyz(8.2815, 4.4488, 21.8907)
Luminance	0.0445 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Indigo

#4B0082

ΔE00 4.10

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#551D83 #4B831D

analogous

#221D83 #551D83 #831D7E

triadic

#551D83 #83551D #1D8355

tetradic

#551D83 #83221D #4B831D #1D7E83

square

#551D83 #83221D #4B831D #1D7E83

split-complementary

#551D83 #7E831D #1D8322

monochromatic

#14071F #341251 #551D83 #7628B5 #9445D6

Accessibility & contrast

On white

11.11

#551D83 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#551D83 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #551D83

11.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##551D83	#FFFFFF	#000000	##FFFFFF
##551D83	1.00	11.11	1.89	11.11
#FFFFFF	11.11	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A86

Deuteranopia (green-blind)

#003C81

Tritanopia (blue-blind)

#4C374F

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #551d83;
/* rgb */ color: rgb(85, 29, 131);
/* oklch */ color: oklch(37.4% 0.160 304.6);

Tailwind

colors: {
  custom: {
    50: '#8a5fa8',
    500: '#551d83',
    950: '#000000',
  },
}

SCSS

$custom: #551d83;
$custom-light: #8a5fa8;
$custom-dark: #000000;

JSON

{
  "hex": "#551d83",
  "rgb": {
    "r": 85,
    "g": 29,
    "b": 131
  },
  "hsl": {
    "h": 272.941,
    "s": 63.75,
    "l": 31.373
  },
  "oklch": {
    "l": 0.37439,
    "c": 0.1601,
    "h": 304.6
  },
  "luminance": 0.04449
}

Semantic roles & 50–950 ramp

primary

#551D83

secondary

#78B646

accent

#E7418C

background

#F8F5FA

surface

#F0EAF4

border

#CBC6CE

text

#0C0510

muted

#7D797F

Preview Lab

Preview with #551D83

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

Preview Lab → · Contrast checker → · Palette generator →