#551D82#551D82

#551D82 is a dark, vivid violet. Relative luminance 0.044; OKLCH L 37.4% C 0.159 H 304.9°. Best body text is #FFFFFF at 11.14:1 contrast (WCAG AA passes).

Color values

HEX	#551D82
RGB	rgb(85, 29, 130)
HSL	hsl(273, 64%, 31%)
HSV	hsv(273, 78%, 51%)
CMYK	cmyk(34.6%, 77.7%, 0%, 49%)
CIE-LAB	lab(25.02, 44.25, -45.80)
CIE-LCH	lch(25.02, 63.69, 314.01°)
OKLab	oklab(37.35% 0.0911 -0.1304)
OKLCH	oklch(37.35% 0.159 304.9)
XYZ	xyz(8.2140, 4.4218, 21.5355)
Luminance	0.0442 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Indigo

#4B0082

ΔE00 4.14

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#551D82 #4A821D

analogous

#221D82 #551D82 #821D7C

triadic

#551D82 #82551D #1D8255

tetradic

#551D82 #82221D #4A821D #1D7C82

square

#551D82 #82221D #4A821D #1D7C82

split-complementary

#551D82 #7C821D #1D8222

monochromatic

#14071E #341250 #551D82 #7628B4 #9544D5

Accessibility & contrast

On white

11.14

#551D82 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#551D82 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #551D82

11.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##551D82	#FFFFFF	#000000	##FFFFFF
##551D82	1.00	11.14	1.88	11.14
#FFFFFF	11.14	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A85

Deuteranopia (green-blind)

#003B80

Tritanopia (blue-blind)

#4C364E

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #551d82;
/* rgb */ color: rgb(85, 29, 130);
/* oklch */ color: oklch(37.4% 0.159 304.9);

Tailwind

colors: {
  custom: {
    50: '#8a5fa7',
    500: '#551d82',
    950: '#000000',
  },
}

SCSS

$custom: #551d82;
$custom-light: #8a5fa7;
$custom-dark: #000000;

JSON

{
  "hex": "#551d82",
  "rgb": {
    "r": 85,
    "g": 29,
    "b": 130
  },
  "hsl": {
    "h": 273.267,
    "s": 63.522,
    "l": 31.176
  },
  "oklch": {
    "l": 0.37355,
    "c": 0.15904,
    "h": 304.9
  },
  "luminance": 0.04422
}

Semantic roles & 50–950 ramp

primary

#551D82

secondary

#77B546

accent

#E7418B

background

#F8F5FA

surface

#F0EAF4

border

#CBC6CE

text

#0C050F

muted

#7D797F

Preview Lab

Preview with #551D82

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

Preview Lab → · Contrast checker → · Palette generator →