#551B4D#551B4D

#551B4D is a dark, moderate purple. Relative luminance 0.033; OKLCH L 33.3% C 0.108 H 333.6°. Best body text is #FFFFFF at 12.73:1 contrast (WCAG AA passes).

Color values

HEX	#551B4D
RGB	rgb(85, 27, 77)
HSL	hsl(308, 52%, 22%)
HSV	hsv(308, 68%, 33%)
CMYK	cmyk(0%, 68.2%, 9.4%, 66.7%)
CIE-LAB	lab(21.02, 33.55, -17.63)
CIE-LCH	lch(21.02, 37.90, 332.27°)
OKLab	oklab(33.33% 0.0969 -0.0481)
OKLCH	oklch(33.33% 0.108 333.6)
XYZ	xyz(5.4778, 3.2514, 7.3588)
Luminance	0.0325 (WCAG relative)
Temperature	neutral
Family	purple

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#551B4D #1B5523

analogous

#401B55 #551B4D #551B30

triadic

#551B4D #4D551B #1B4D55

tetradic

#551B4D #55401B #1B5523 #1B3055

square

#551B4D #55401B #1B5523 #1B3055

split-complementary

#551B4D #30551B #1B5540

monochromatic

#170715 #270C23 #551B4D #832A77 #B239A1

Accessibility & contrast

On white

12.73

#551B4D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#551B4D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #551B4D

12.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##551B4D	#FFFFFF	#000000	##FFFFFF
##551B4D	1.00	12.73	1.65	12.73
#FFFFFF	12.73	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A2D4F

Deuteranopia (green-blind)

#2D364B

Tritanopia (blue-blind)

#591F31

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #551b4d;
/* rgb */ color: rgb(85, 27, 77);
/* oklch */ color: oklch(33.3% 0.108 333.6);

Tailwind

colors: {
  custom: {
    50: '#875c7f',
    500: '#551b4d',
    950: '#000000',
  },
}

SCSS

$custom: #551b4d;
$custom-light: #875c7f;
$custom-dark: #000000;

JSON

{
  "hex": "#551b4d",
  "rgb": {
    "r": 85,
    "g": 27,
    "b": 77
  },
  "hsl": {
    "h": 308.276,
    "s": 51.786,
    "l": 21.961
  },
  "oklch": {
    "l": 0.33326,
    "c": 0.10816,
    "h": 333.6
  },
  "luminance": 0.03251
}

Semantic roles & 50–950 ramp

primary

#551B4D

secondary

#418B4B

accent

#DB604D

background

#F8F5F7

surface

#F0E9EE

border

#CBC5C9

text

#0B040A

muted

#7C797C

Preview Lab

Preview with #551B4D

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

Preview Lab → · Contrast checker → · Palette generator →