#551D8A#551D8A

#551D8A is a dark, vivid violet. Relative luminance 0.046; OKLCH L 38.0% C 0.168 H 302.1°. Best body text is #FFFFFF at 10.89:1 contrast (WCAG AA passes).

Color values

HEX	#551D8A
RGB	rgb(85, 29, 138)
HSL	hsl(271, 65%, 33%)
HSV	hsv(271, 79%, 54%)
CMYK	cmyk(38.4%, 79%, 0%, 45.9%)
CIE-LAB	lab(25.70, 46.22, -49.71)
CIE-LCH	lch(25.70, 67.88, 312.92°)
OKLab	oklab(38.04% 0.0891 -0.1419)
OKLCH	oklch(38.04% 0.168 302.1)
XYZ	xyz(8.7720, 4.6450, 24.4743)
Luminance	0.0464 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#551D8A #528A1D

analogous

#1F1D8A #551D8A #8A1D88

triadic

#551D8A #8A551D #1D8A55

tetradic

#551D8A #8A1F1D #528A1D #1D888A

square

#551D8A #8A1F1D #528A1D #1D888A

split-complementary

#551D8A #888A1D #1D8A1F

monochromatic

#170825 #361257 #551D8A #7428BD #9349D9

Accessibility & contrast

On white

10.89

#551D8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#551D8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #551D8A

10.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##551D8A	#FFFFFF	#000000	##FFFFFF
##551D8A	1.00	10.89	1.93	10.89
#FFFFFF	10.89	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C8D

Deuteranopia (green-blind)

#003C88

Tritanopia (blue-blind)

#4A3A53

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #551d8a;
/* rgb */ color: rgb(85, 29, 138);
/* oklch */ color: oklch(38.0% 0.168 302.1);

Tailwind

colors: {
  custom: {
    50: '#8a60ad',
    500: '#551d8a',
    950: '#000000',
  },
}

SCSS

$custom: #551d8a;
$custom-light: #8a60ad;
$custom-dark: #000000;

JSON

{
  "hex": "#551d8a",
  "rgb": {
    "r": 85,
    "g": 29,
    "b": 138
  },
  "hsl": {
    "h": 270.826,
    "s": 65.269,
    "l": 32.745
  },
  "oklch": {
    "l": 0.38042,
    "c": 0.16751,
    "h": 302.1
  },
  "luminance": 0.04645
}

Semantic roles & 50–950 ramp

primary

#551D8A

secondary

#80BB48

accent

#E84092

background

#F8F5FA

surface

#F0EAF4

border

#CBC6CE

text

#0C0510

muted

#7D797F

Preview Lab

Preview with #551D8A

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

Preview Lab → · Contrast checker → · Palette generator →