#551B7B#551B7B

#551B7B is a dark, vivid violet. Relative luminance 0.041; OKLCH L 36.6% C 0.154 H 307.9°. Best body text is #FFFFFF at 11.48:1 contrast (WCAG AA passes).

Color values

HEX	#551B7B
RGB	rgb(85, 27, 123)
HSL	hsl(276, 64%, 29%)
HSV	hsv(276, 78%, 48%)
CMYK	cmyk(30.9%, 78%, 0%, 51.8%)
CIE-LAB	lab(24.15, 43.42, -42.80)
CIE-LCH	lch(24.15, 60.97, 315.42°)
OKLab	oklab(36.56% 0.0946 -0.1215)
OKLCH	oklch(36.56% 0.154 307.9)
XYZ	xyz(7.7126, 4.1453, 19.1289)
Luminance	0.0415 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#551B7B #417B1B

analogous

#251B7B #551B7B #7B1B71

triadic

#551B7B #7B551B #1B7B55

tetradic

#551B7B #7B251B #417B1B #1B717B

square

#551B7B #7B251B #417B1B #1B717B

split-complementary

#551B7B #717B1B #1B7B25

monochromatic

#110619 #321049 #551B7B #7826AD #983CD4

Accessibility & contrast

On white

11.48

#551B7B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#551B7B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #551B7B

11.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##551B7B	#FFFFFF	#000000	##FFFFFF
##551B7B	1.00	11.48	1.83	11.48
#FFFFFF	11.48	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00377E

Deuteranopia (green-blind)

#003A79

Tritanopia (blue-blind)

#4F324A

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #551b7b;
/* rgb */ color: rgb(85, 27, 123);
/* oklch */ color: oklch(36.6% 0.154 307.9);

Tailwind

colors: {
  custom: {
    50: '#895ea2',
    500: '#551b7b',
    950: '#000000',
  },
}

SCSS

$custom: #551b7b;
$custom-light: #895ea2;
$custom-dark: #000000;

JSON

{
  "hex": "#551b7b",
  "rgb": {
    "r": 85,
    "g": 27,
    "b": 123
  },
  "hsl": {
    "h": 276.25,
    "s": 64,
    "l": 29.412
  },
  "oklch": {
    "l": 0.3656,
    "c": 0.15399,
    "h": 307.9
  },
  "luminance": 0.04145
}

Semantic roles & 50–950 ramp

primary

#551B7B

secondary

#6EAF43

accent

#E74183

background

#F8F5FA

surface

#F0E9F3

border

#CBC5CD

text

#0C050F

muted

#7D797F

Preview Lab

Preview with #551B7B

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

Preview Lab → · Contrast checker → · Palette generator →