#551B5D#551B5D

#551B5D is a dark, vivid purple. Relative luminance 0.035; OKLCH L 34.3% C 0.123 H 322.6°. Best body text is #FFFFFF at 12.35:1 contrast (WCAG AA passes).

Color values

HEX	#551B5D
RGB	rgb(85, 27, 93)
HSL	hsl(293, 55%, 24%)
HSV	hsv(293, 71%, 36%)
CMYK	cmyk(8.6%, 71%, 0%, 63.5%)
CIE-LAB	lab(21.97, 36.69, -26.86)
CIE-LCH	lch(21.97, 45.47, 323.79°)
OKLab	oklab(34.31% 0.098 -0.0748)
OKLCH	oklch(34.31% 0.123 322.6)
XYZ	xyz(6.1138, 3.5058, 10.7085)
Luminance	0.0350 (WCAG relative)
Temperature	neutral
Family	purple

Closest named colors

Royal Purple (survey)

#4B006E

ΔE00 6.97

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#551B5D #235D1B

analogous

#341B5D #551B5D #5D1B44

triadic

#551B5D #5D551B #1B5D55

tetradic

#551B5D #5D341B #235D1B #1B445D

square

#551B5D #5D341B #235D1B #1B445D

split-complementary

#551B5D #445D1B #1B5D34

monochromatic

#160718 #2A0D2E #551B5D #80298C #AC37BC

Accessibility & contrast

On white

12.35

#551B5D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#551B5D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #551B5D

12.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##551B5D	#FFFFFF	#000000	##FFFFFF
##551B5D	1.00	12.35	1.70	12.35
#FFFFFF	12.35	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0A305F

Deuteranopia (green-blind)

#24375B

Tritanopia (blue-blind)

#562639

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #551b5d;
/* rgb */ color: rgb(85, 27, 93);
/* oklch */ color: oklch(34.3% 0.123 322.6);

Tailwind

colors: {
  custom: {
    50: '#875d8b',
    500: '#551b5d',
    950: '#000000',
  },
}

SCSS

$custom: #551b5d;
$custom-light: #875d8b;
$custom-dark: #000000;

JSON

{
  "hex": "#551b5d",
  "rgb": {
    "r": 85,
    "g": 27,
    "b": 93
  },
  "hsl": {
    "h": 292.727,
    "s": 55,
    "l": 23.529
  },
  "oklch": {
    "l": 0.34313,
    "c": 0.12329,
    "h": 322.6
  },
  "luminance": 0.03505
}

Semantic roles & 50–950 ramp

primary

#551B5D

secondary

#4B9341

accent

#DE495C

background

#F8F5F8

surface

#F0E9F0

border

#CBC5CB

text

#0C040C

muted

#7D797D

Preview Lab

Preview with #551B5D

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

Preview Lab → · Contrast checker → · Palette generator →