#551C71#551C71

#551C71 is a dark, vivid purple. Relative luminance 0.040; OKLCH L 35.9% C 0.142 H 312.0°. Best body text is #FFFFFF at 11.73:1 contrast (WCAG AA passes).

Color values

HEX	#551C71
RGB	rgb(85, 28, 113)
HSL	hsl(280, 60%, 28%)
HSV	hsv(280, 75%, 44%)
CMYK	cmyk(24.8%, 75.2%, 0%, 55.7%)
CIE-LAB	lab(23.52, 40.64, -37.42)
CIE-LCH	lch(23.52, 55.24, 317.37°)
OKLab	oklab(35.87% 0.0953 -0.1057)
OKLCH	oklch(35.87% 0.142 312)
XYZ	xyz(7.1417, 3.9543, 16.0066)
Luminance	0.0395 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#551C71 #38711C

analogous

#2A1C71 #551C71 #711C63

triadic

#551C71 #71551C #1C7155

tetradic

#551C71 #712A1C #38711C #1C6371

square

#551C71 #712A1C #38711C #1C6371

split-complementary

#551C71 #63711C #1C712A

monochromatic

#120619 #301040 #551C71 #7A28A2 #9D39CE

Accessibility & contrast

On white

11.73

#551C71 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#551C71 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #551C71

11.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##551C71	#FFFFFF	#000000	##FFFFFF
##551C71	1.00	11.73	1.79	11.73
#FFFFFF	11.73	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003573

Deuteranopia (green-blind)

#11396F

Tritanopia (blue-blind)

#522F44

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #551c71;
/* rgb */ color: rgb(85, 28, 113);
/* oklch */ color: oklch(35.9% 0.142 312.0);

Tailwind

colors: {
  custom: {
    50: '#885e9a',
    500: '#551c71',
    950: '#000000',
  },
}

SCSS

$custom: #551c71;
$custom-light: #885e9a;
$custom-dark: #000000;

JSON

{
  "hex": "#551c71",
  "rgb": {
    "r": 85,
    "g": 28,
    "b": 113
  },
  "hsl": {
    "h": 280.235,
    "s": 60.284,
    "l": 27.647
  },
  "oklch": {
    "l": 0.3587,
    "c": 0.14236,
    "h": 312
  },
  "luminance": 0.03954
}

Semantic roles & 50–950 ramp

primary

#551C71

secondary

#64A643

accent

#E34479

background

#F8F5F9

surface

#F0E9F2

border

#CBC5CC

text

#0C050E

muted

#7D797E

Preview Lab

Preview with #551C71

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

Preview Lab → · Contrast checker → · Palette generator →