#551D66#551D66

#551D66 is a dark, vivid purple. Relative luminance 0.038; OKLCH L 35.2% C 0.130 H 317.3°. Best body text is #FFFFFF at 11.97:1 contrast (WCAG AA passes).

Color values

HEX	#551D66
RGB	rgb(85, 29, 102)
HSL	hsl(286, 56%, 26%)
HSV	hsv(286, 72%, 40%)
CMYK	cmyk(16.7%, 71.6%, 0%, 60%)
CIE-LAB	lab(22.89, 37.69, -31.29)
CIE-LCH	lch(22.89, 48.99, 320.30°)
OKLab	oklab(35.17% 0.0953 -0.0878)
OKLCH	oklch(35.17% 0.13 317.3)
XYZ	xyz(6.5836, 3.7696, 12.9486)
Luminance	0.0377 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Plum Purple

#4E0550

ΔE00 5.19

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#551D66 #2E661D

analogous

#301D66 #551D66 #661D52

triadic

#551D66 #66551D #1D6655

tetradic

#551D66 #66301D #2E661D #1D5266

square

#551D66 #66301D #2E661D #1D5266

split-complementary

#551D66 #52661D #1D6630

monochromatic

#140718 #2D0F36 #551D66 #7D2B96 #A438C5

Accessibility & contrast

On white

11.97

#551D66 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#551D66 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #551D66

11.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##551D66	#FFFFFF	#000000	##FFFFFF
##551D66	1.00	11.97	1.75	11.97
#FFFFFF	11.97	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	11.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003368

Deuteranopia (green-blind)

#1F3864

Tritanopia (blue-blind)

#542B3F

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #551d66;
/* rgb */ color: rgb(85, 29, 102);
/* oklch */ color: oklch(35.2% 0.130 317.3);

Tailwind

colors: {
  custom: {
    50: '#885e92',
    500: '#551d66',
    950: '#000000',
  },
}

SCSS

$custom: #551d66;
$custom-light: #885e92;
$custom-dark: #000000;

JSON

{
  "hex": "#551d66",
  "rgb": {
    "r": 85,
    "g": 29,
    "b": 102
  },
  "hsl": {
    "h": 286.027,
    "s": 55.725,
    "l": 25.686
  },
  "oklch": {
    "l": 0.35173,
    "c": 0.12954,
    "h": 317.3
  },
  "luminance": 0.03769
}

Semantic roles & 50–950 ramp

primary

#551D66

secondary

#589B44

accent

#DF496C

background

#F8F5F9

surface

#F0E9F1

border

#CBC5CB

text

#0C050D

muted

#7D797E

Preview Lab

Preview with #551D66

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

Preview Lab → · Contrast checker → · Palette generator →