#551F8A#551F8A

#551F8A is a dark, vivid violet. Relative luminance 0.047; OKLCH L 38.3% C 0.165 H 301.8°. Best body text is #FFFFFF at 10.77:1 contrast (WCAG AA passes).

Color values

HEX	#551F8A
RGB	rgb(85, 31, 138)
HSL	hsl(270, 63%, 33%)
HSV	hsv(270, 78%, 54%)
CMYK	cmyk(38.4%, 77.5%, 0%, 45.9%)
CIE-LAB	lab(26.00, 45.36, -49.22)
CIE-LCH	lch(26.00, 66.93, 312.66°)
OKLab	oklab(38.25% 0.0872 -0.1404)
OKLCH	oklch(38.25% 0.165 301.8)
XYZ	xyz(8.8226, 4.7462, 24.4911)
Luminance	0.0475 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#551F8A #548A1F

analogous

#1F1F8A #551F8A #8A1F89

triadic

#551F8A #8A551F #1F8A55

tetradic

#551F8A #8A1F1F #548A1F #1F898A

square

#551F8A #8A1F1F #548A1F #1F898A

split-complementary

#551F8A #898A1F #1F8A1F

monochromatic

#170926 #361458 #551F8A #742ABC #924CD7

Accessibility & contrast

On white

10.77

#551F8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#551F8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #551F8A

10.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##551F8A	#FFFFFF	#000000	##FFFFFF
##551F8A	1.00	10.77	1.95	10.77
#FFFFFF	10.77	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D8D

Deuteranopia (green-blind)

#003D88

Tritanopia (blue-blind)

#4A3B53

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #551f8a;
/* rgb */ color: rgb(85, 31, 138);
/* oklch */ color: oklch(38.3% 0.165 301.8);

Tailwind

colors: {
  custom: {
    50: '#8a61ad',
    500: '#551f8a',
    950: '#000000',
  },
}

SCSS

$custom: #551f8a;
$custom-light: #8a61ad;
$custom-dark: #000000;

JSON

{
  "hex": "#551f8a",
  "rgb": {
    "r": 85,
    "g": 31,
    "b": 138
  },
  "hsl": {
    "h": 270.28,
    "s": 63.314,
    "l": 33.137
  },
  "oklch": {
    "l": 0.38253,
    "c": 0.16534,
    "h": 301.8
  },
  "luminance": 0.04746
}

Semantic roles & 50–950 ramp

primary

#551F8A

secondary

#82BA4B

accent

#E64193

background

#F8F5FA

surface

#F0EAF4

border

#CBC6CE

text

#0C0510

muted

#7D797F

Preview Lab

Preview with #551F8A

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

Preview Lab → · Contrast checker → · Palette generator →