#551D8E#551D8E

#551D8E is a dark, vivid violet. Relative luminance 0.048; OKLCH L 38.4% C 0.172 H 300.8°. Best body text is #FFFFFF at 10.75:1 contrast (WCAG AA passes).

Color values

HEX	#551D8E
RGB	rgb(85, 29, 142)
HSL	hsl(270, 66%, 34%)
HSV	hsv(270, 80%, 56%)
CMYK	cmyk(40.1%, 79.6%, 0%, 44.3%)
CIE-LAB	lab(26.05, 47.22, -51.63)
CIE-LCH	lch(26.05, 69.96, 312.45°)
OKLab	oklab(38.4% 0.088 -0.1475)
OKLCH	oklch(38.4% 0.172 300.8)
XYZ	xyz(9.0670, 4.7629, 26.0276)
Luminance	0.0476 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#551D8E #568E1D

analogous

#1D1D8E #551D8E #8D1D8E

triadic

#551D8E #8E551D #1D8E55

tetradic

#551D8E #8E1D1D #568E1D #1D8E8D

square

#551D8E #8E1D1D #568E1D #1D8E8D

split-complementary

#551D8E #8E8D1D #1D8E1D

monochromatic

#180828 #37135B #551D8E #7327C1 #924BDA

Accessibility & contrast

On white

10.75

#551D8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#551D8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #551D8E

10.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##551D8E	#FFFFFF	#000000	##FFFFFF
##551D8E	1.00	10.75	1.95	10.75
#FFFFFF	10.75	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D91

Deuteranopia (green-blind)

#003D8C

Tritanopia (blue-blind)

#483B55

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #551d8e;
/* rgb */ color: rgb(85, 29, 142);
/* oklch */ color: oklch(38.4% 0.172 300.8);

Tailwind

colors: {
  custom: {
    50: '#8b60b0',
    500: '#551d8e',
    950: '#000000',
  },
}

SCSS

$custom: #551d8e;
$custom-light: #8b60b0;
$custom-dark: #000000;

JSON

{
  "hex": "#551d8e",
  "rgb": {
    "r": 85,
    "g": 29,
    "b": 142
  },
  "hsl": {
    "h": 269.735,
    "s": 66.082,
    "l": 33.529
  },
  "oklch": {
    "l": 0.38396,
    "c": 0.17174,
    "h": 300.8
  },
  "luminance": 0.04763
}

Semantic roles & 50–950 ramp

primary

#551D8E

secondary

#84BD4A

accent

#E93F95

background

#F8F5FA

surface

#F0EAF5

border

#CBC6CF

text

#0D0511

muted

#7D7980

Preview Lab

Preview with #551D8E

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

Preview Lab → · Contrast checker → · Palette generator →