#551D71#551D71

#551D71 is a dark, vivid purple. Relative luminance 0.040; OKLCH L 36.0% C 0.141 H 311.9°. Best body text is #FFFFFF at 11.66:1 contrast (WCAG AA passes).

Color values

HEX	#551D71
RGB	rgb(85, 29, 113)
HSL	hsl(280, 59%, 28%)
HSV	hsv(280, 74%, 44%)
CMYK	cmyk(24.8%, 74.3%, 0%, 55.7%)
CIE-LAB	lab(23.68, 40.19, -37.16)
CIE-LCH	lch(23.68, 54.74, 317.25°)
OKLab	oklab(35.98% 0.0942 -0.105)
OKLCH	oklch(35.98% 0.141 311.9)
XYZ	xyz(7.1658, 4.0025, 16.0147)
Luminance	0.0400 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#551D71 #39711D

analogous

#2B1D71 #551D71 #711D63

triadic

#551D71 #71551D #1D7155

tetradic

#551D71 #712B1D #39711D #1D6371

square

#551D71 #712B1D #39711D #1D6371

split-complementary

#551D71 #63711D #1D712B

monochromatic

#120618 #301140 #551D71 #7A29A2 #9C3CCD

Accessibility & contrast

On white

11.66

#551D71 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#551D71 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #551D71

11.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##551D71	#FFFFFF	#000000	##FFFFFF
##551D71	1.00	11.66	1.80	11.66
#FFFFFF	11.66	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003673

Deuteranopia (green-blind)

#13396F

Tritanopia (blue-blind)

#522F45

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #551d71;
/* rgb */ color: rgb(85, 29, 113);
/* oklch */ color: oklch(36.0% 0.141 311.9);

Tailwind

colors: {
  custom: {
    50: '#885f9a',
    500: '#551d71',
    950: '#000000',
  },
}

SCSS

$custom: #551d71;
$custom-light: #885f9a;
$custom-dark: #000000;

JSON

{
  "hex": "#551d71",
  "rgb": {
    "r": 85,
    "g": 29,
    "b": 113
  },
  "hsl": {
    "h": 280,
    "s": 59.155,
    "l": 27.843
  },
  "oklch": {
    "l": 0.35984,
    "c": 0.14106,
    "h": 311.9
  },
  "luminance": 0.04002
}

Semantic roles & 50–950 ramp

primary

#551D71

secondary

#65A544

accent

#E2457A

background

#F8F5F9

surface

#F0E9F2

border

#CBC5CC

text

#0C050E

muted

#7D797E

Preview Lab

Preview with #551D71

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

Preview Lab → · Contrast checker → · Palette generator →