#551B6F#551B6F

#551B6F is a dark, vivid purple. Relative luminance 0.039; OKLCH L 35.6% C 0.142 H 313.1°. Best body text is #FFFFFF at 11.85:1 contrast (WCAG AA passes).

Color values

HEX	#551B6F
RGB	rgb(85, 27, 111)
HSL	hsl(281, 61%, 27%)
HSV	hsv(281, 76%, 44%)
CMYK	cmyk(23.4%, 75.7%, 0%, 56.5%)
CIE-LAB	lab(23.21, 40.63, -36.62)
CIE-LCH	lch(23.21, 54.70, 317.97°)
OKLab	oklab(35.6% 0.0967 -0.1034)
OKLCH	oklch(35.6% 0.142 313.1)
XYZ	xyz(7.0070, 3.8631, 15.4124)
Luminance	0.0386 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#551B6F #356F1B

analogous

#2B1B6F #551B6F #6F1B5F

triadic

#551B6F #6F551B #1B6F55

tetradic

#551B6F #6F2B1B #356F1B #1B5F6F

square

#551B6F #6F2B1B #356F1B #1B5F6F

split-complementary

#551B6F #5F6F1B #1B6F2B

monochromatic

#130619 #2F0F3E #551B6F #7B27A0 #9F36CE

Accessibility & contrast

On white

11.85

#551B6F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#551B6F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #551B6F

11.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##551B6F	#FFFFFF	#000000	##FFFFFF
##551B6F	1.00	11.85	1.77	11.85
#FFFFFF	11.85	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003471

Deuteranopia (green-blind)

#13396D

Tritanopia (blue-blind)

#522D43

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #551b6f;
/* rgb */ color: rgb(85, 27, 111);
/* oklch */ color: oklch(35.6% 0.142 313.1);

Tailwind

colors: {
  custom: {
    50: '#885d99',
    500: '#551b6f',
    950: '#000000',
  },
}

SCSS

$custom: #551b6f;
$custom-light: #885d99;
$custom-dark: #000000;

JSON

{
  "hex": "#551b6f",
  "rgb": {
    "r": 85,
    "g": 27,
    "b": 111
  },
  "hsl": {
    "h": 281.429,
    "s": 60.87,
    "l": 27.059
  },
  "oklch": {
    "l": 0.35605,
    "c": 0.14157,
    "h": 313.1
  },
  "luminance": 0.03863
}

Semantic roles & 50–950 ramp

primary

#551B6F

secondary

#60A442

accent

#E44475

background

#F8F5F9

surface

#F0E9F2

border

#CBC5CC

text

#0C050E

muted

#7D797E

Preview Lab

Preview with #551B6F

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

Preview Lab → · Contrast checker → · Palette generator →