#551B79#551B79

#551B79 is a dark, vivid violet. Relative luminance 0.041; OKLCH L 36.4% C 0.152 H 308.7°. Best body text is #FFFFFF at 11.54:1 contrast (WCAG AA passes).

Color values

HEX	#551B79
RGB	rgb(85, 27, 121)
HSL	hsl(277, 64%, 29%)
HSV	hsv(277, 78%, 47%)
CMYK	cmyk(29.8%, 77.7%, 0%, 52.5%)
CIE-LAB	lab(23.99, 42.95, -41.78)
CIE-LCH	lch(23.99, 59.92, 315.79°)
OKLab	oklab(36.4% 0.095 -0.1186)
OKLCH	oklch(36.4% 0.152 308.7)
XYZ	xyz(7.5887, 4.0958, 18.4762)
Luminance	0.0410 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#551B79 #3F791B

analogous

#261B79 #551B79 #791B6E

triadic

#551B79 #79551B #1B7955

tetradic

#551B79 #79261B #3F791B #1B6E79

square

#551B79 #79261B #3F791B #1B6E79

split-complementary

#551B79 #6E791B #1B7926

monochromatic

#120619 #321047 #551B79 #7826AB #993BD3

Accessibility & contrast

On white

11.54

#551B79 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#551B79 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #551B79

11.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##551B79	#FFFFFF	#000000	##FFFFFF
##551B79	1.00	11.54	1.82	11.54
#FFFFFF	11.54	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00377C

Deuteranopia (green-blind)

#003A77

Tritanopia (blue-blind)

#4F3149

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #551b79;
/* rgb */ color: rgb(85, 27, 121);
/* oklch */ color: oklch(36.4% 0.152 308.7);

Tailwind

colors: {
  custom: {
    50: '#895ea0',
    500: '#551b79',
    950: '#000000',
  },
}

SCSS

$custom: #551b79;
$custom-light: #895ea0;
$custom-dark: #000000;

JSON

{
  "hex": "#551b79",
  "rgb": {
    "r": 85,
    "g": 27,
    "b": 121
  },
  "hsl": {
    "h": 277.021,
    "s": 63.514,
    "l": 29.02
  },
  "oklch": {
    "l": 0.36396,
    "c": 0.15191,
    "h": 308.7
  },
  "luminance": 0.04096
}

Semantic roles & 50–950 ramp

primary

#551B79

secondary

#6BAD43

accent

#E74181

background

#F8F5F9

surface

#F0E9F2

border

#CBC5CC

text

#0C050F

muted

#7D797E

Preview Lab

Preview with #551B79

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

Preview Lab → · Contrast checker → · Palette generator →