#551D8B#551D8B

#551D8B is a dark, vivid violet. Relative luminance 0.047; OKLCH L 38.1% C 0.169 H 301.8°. Best body text is #FFFFFF at 10.85:1 contrast (WCAG AA passes).

Color values

HEX	#551D8B
RGB	rgb(85, 29, 139)
HSL	hsl(271, 65%, 33%)
HSV	hsv(271, 79%, 55%)
CMYK	cmyk(38.8%, 79.1%, 0%, 45.5%)
CIE-LAB	lab(25.79, 46.47, -50.19)
CIE-LCH	lch(25.79, 68.40, 312.79°)
OKLab	oklab(38.13% 0.0888 -0.1433)
OKLCH	oklch(38.13% 0.169 301.8)
XYZ	xyz(8.8447, 4.6741, 24.8573)
Luminance	0.0467 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#551D8B #538B1D

analogous

#1E1D8B #551D8B #8B1D8A

triadic

#551D8B #8B551D #1D8B55

tetradic

#551D8B #8B1E1D #538B1D #1D8A8B

square

#551D8B #8B1E1D #538B1D #1D8A8B

split-complementary

#551D8B #8A8B1D #1D8B1E

monochromatic

#170826 #361258 #551D8B #7428BE #9349D9

Accessibility & contrast

On white

10.85

#551D8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#551D8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #551D8B

10.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##551D8B	#FFFFFF	#000000	##FFFFFF
##551D8B	1.00	10.85	1.93	10.85
#FFFFFF	10.85	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C8E

Deuteranopia (green-blind)

#003D89

Tritanopia (blue-blind)

#493A53

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #551d8b;
/* rgb */ color: rgb(85, 29, 139);
/* oklch */ color: oklch(38.1% 0.169 301.8);

Tailwind

colors: {
  custom: {
    50: '#8a60ae',
    500: '#551d8b',
    950: '#000000',
  },
}

SCSS

$custom: #551d8b;
$custom-light: #8a60ae;
$custom-dark: #000000;

JSON

{
  "hex": "#551d8b",
  "rgb": {
    "r": 85,
    "g": 29,
    "b": 139
  },
  "hsl": {
    "h": 270.545,
    "s": 65.476,
    "l": 32.941
  },
  "oklch": {
    "l": 0.3813,
    "c": 0.16856,
    "h": 301.8
  },
  "luminance": 0.04674
}

Semantic roles & 50–950 ramp

primary

#551D8B

secondary

#81BB49

accent

#E83F92

background

#F8F5FA

surface

#F0EAF4

border

#CBC6CE

text

#0C0510

muted

#7D797F

Preview Lab

Preview with #551D8B

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

Preview Lab → · Contrast checker → · Palette generator →