#551D73#551D73

#551D73 is a dark, vivid violet. Relative luminance 0.040; OKLCH L 36.1% C 0.143 H 311.0°. Best body text is #FFFFFF at 11.60:1 contrast (WCAG AA passes).

Color values

HEX	#551D73
RGB	rgb(85, 29, 115)
HSL	hsl(279, 60%, 28%)
HSV	hsv(279, 75%, 45%)
CMYK	cmyk(26.1%, 74.8%, 0%, 54.9%)
CIE-LAB	lab(23.83, 40.66, -38.20)
CIE-LCH	lch(23.83, 55.79, 316.78°)
OKLab	oklab(36.14% 0.0939 -0.1081)
OKLCH	oklch(36.14% 0.143 311)
XYZ	xyz(7.2796, 4.0480, 16.6142)
Luminance	0.0405 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#551D73 #3B731D

analogous

#2A1D73 #551D73 #731D66

triadic

#551D73 #73551D #1D7355

tetradic

#551D73 #732A1D #3B731D #1D6673

square

#551D73 #732A1D #3B731D #1D6673

split-complementary

#551D73 #66731D #1D732A

monochromatic

#120618 #311142 #551D73 #7929A4 #9B3CCE

Accessibility & contrast

On white

11.60

#551D73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#551D73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #551D73

11.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##551D73	#FFFFFF	#000000	##FFFFFF
##551D73	1.00	11.60	1.81	11.60
#FFFFFF	11.60	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003675

Deuteranopia (green-blind)

#0F3A71

Tritanopia (blue-blind)

#513046

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #551d73;
/* rgb */ color: rgb(85, 29, 115);
/* oklch */ color: oklch(36.1% 0.143 311.0);

Tailwind

colors: {
  custom: {
    50: '#885f9c',
    500: '#551d73',
    950: '#000000',
  },
}

SCSS

$custom: #551d73;
$custom-light: #885f9c;
$custom-dark: #000000;

JSON

{
  "hex": "#551d73",
  "rgb": {
    "r": 85,
    "g": 29,
    "b": 115
  },
  "hsl": {
    "h": 279.07,
    "s": 59.722,
    "l": 28.235
  },
  "oklch": {
    "l": 0.36138,
    "c": 0.14317,
    "h": 311
  },
  "luminance": 0.04048
}

Semantic roles & 50–950 ramp

primary

#551D73

secondary

#67A745

accent

#E3457C

background

#F8F5F9

surface

#F0E9F2

border

#CBC5CC

text

#0C050E

muted

#7D797E

Preview Lab

Preview with #551D73

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

Preview Lab → · Contrast checker → · Palette generator →