#551B76#551B76

#551B76 is a dark, vivid violet. Relative luminance 0.040; OKLCH L 36.2% C 0.149 H 309.9°. Best body text is #FFFFFF at 11.64:1 contrast (WCAG AA passes).

Color values

HEX	#551B76
RGB	rgb(85, 27, 118)
HSL	hsl(278, 63%, 28%)
HSV	hsv(278, 77%, 46%)
CMYK	cmyk(28%, 77.1%, 0%, 53.7%)
CIE-LAB	lab(23.75, 42.25, -40.25)
CIE-LCH	lch(23.75, 58.35, 316.38°)
OKLab	oklab(36.15% 0.0956 -0.1141)
OKLCH	oklch(36.15% 0.149 309.9)
XYZ	xyz(7.4076, 4.0233, 17.5224)
Luminance	0.0402 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#551B76 #3C761B

analogous

#271B76 #551B76 #761B69

triadic

#551B76 #76551B #1B7655

tetradic

#551B76 #76271B #3C761B #1B6976

square

#551B76 #76271B #3C761B #1B6976

split-complementary

#551B76 #69761B #1B7627

monochromatic

#120619 #311044 #551B76 #7926A8 #9B3AD2

Accessibility & contrast

On white

11.64

#551B76 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#551B76 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #551B76

11.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##551B76	#FFFFFF	#000000	##FFFFFF
##551B76	1.00	11.64	1.80	11.64
#FFFFFF	11.64	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003679

Deuteranopia (green-blind)

#053974

Tritanopia (blue-blind)

#503047

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #551b76;
/* rgb */ color: rgb(85, 27, 118);
/* oklch */ color: oklch(36.2% 0.149 309.9);

Tailwind

colors: {
  custom: {
    50: '#895e9e',
    500: '#551b76',
    950: '#000000',
  },
}

SCSS

$custom: #551b76;
$custom-light: #895e9e;
$custom-dark: #000000;

JSON

{
  "hex": "#551b76",
  "rgb": {
    "r": 85,
    "g": 27,
    "b": 118
  },
  "hsl": {
    "h": 278.242,
    "s": 62.759,
    "l": 28.431
  },
  "oklch": {
    "l": 0.36154,
    "c": 0.14881,
    "h": 309.9
  },
  "luminance": 0.04023
}

Semantic roles & 50–950 ramp

primary

#551B76

secondary

#68AA42

accent

#E6427D

background

#F8F5F9

surface

#F0E9F2

border

#CBC5CC

text

#0C050E

muted

#7D797E

Preview Lab

Preview with #551B76

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

Preview Lab → · Contrast checker → · Palette generator →