#551B77#551B77

#551B77 is a dark, vivid violet. Relative luminance 0.040; OKLCH L 36.2% C 0.150 H 309.5°. Best body text is #FFFFFF at 11.61:1 contrast (WCAG AA passes).

Color values

HEX	#551B77
RGB	rgb(85, 27, 119)
HSL	hsl(278, 63%, 29%)
HSV	hsv(278, 77%, 47%)
CMYK	cmyk(28.6%, 77.3%, 0%, 53.3%)
CIE-LAB	lab(23.83, 42.48, -40.77)
CIE-LCH	lch(23.83, 58.88, 316.18°)
OKLab	oklab(36.23% 0.0954 -0.1156)
OKLCH	oklch(36.23% 0.15 309.5)
XYZ	xyz(7.4674, 4.0472, 17.8370)
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

#551B77 #3D771B

analogous

#271B77 #551B77 #771B6B

triadic

#551B77 #77551B #1B7755

tetradic

#551B77 #77271B #3D771B #1B6B77

square

#551B77 #77271B #3D771B #1B6B77

split-complementary

#551B77 #6B771B #1B7727

monochromatic

#120619 #311045 #551B77 #7926A9 #9A3AD2

Accessibility & contrast

On white

11.61

#551B77 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#551B77 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #551B77

11.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##551B77	#FFFFFF	#000000	##FFFFFF
##551B77	1.00	11.61	1.81	11.61
#FFFFFF	11.61	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00367A

Deuteranopia (green-blind)

#023975

Tritanopia (blue-blind)

#503148

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #551b77;
/* rgb */ color: rgb(85, 27, 119);
/* oklch */ color: oklch(36.2% 0.150 309.5);

Tailwind

colors: {
  custom: {
    50: '#895e9f',
    500: '#551b77',
    950: '#000000',
  },
}

SCSS

$custom: #551b77;
$custom-light: #895e9f;
$custom-dark: #000000;

JSON

{
  "hex": "#551b77",
  "rgb": {
    "r": 85,
    "g": 27,
    "b": 119
  },
  "hsl": {
    "h": 277.826,
    "s": 63.014,
    "l": 28.627
  },
  "oklch": {
    "l": 0.36234,
    "c": 0.14984,
    "h": 309.5
  },
  "luminance": 0.04047
}

Semantic roles & 50–950 ramp

primary

#551B77

secondary

#69AB42

accent

#E6427E

background

#F8F5F9

surface

#F0E9F2

border

#CBC5CC

text

#0C050E

muted

#7D797E

Preview Lab

Preview with #551B77

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

Preview Lab → · Contrast checker → · Palette generator →