#551B82#551B82

#551B82 is a dark, vivid violet. Relative luminance 0.043; OKLCH L 37.1% C 0.161 H 305.2°. Best body text is #FFFFFF at 11.26:1 contrast (WCAG AA passes).

Color values

HEX	#551B82
RGB	rgb(85, 27, 130)
HSL	hsl(274, 66%, 31%)
HSV	hsv(274, 79%, 51%)
CMYK	cmyk(34.6%, 79.2%, 0%, 49%)
CIE-LAB	lab(24.72, 45.10, -46.29)
CIE-LCH	lch(24.72, 64.62, 314.26°)
OKLab	oklab(37.15% 0.0929 -0.1318)
OKLCH	oklch(37.15% 0.161 305.2)
XYZ	xyz(8.1666, 4.3269, 21.5197)
Luminance	0.0433 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Indigo

#4B0082

ΔE00 3.83

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#551B82 #48821B

analogous

#211B82 #551B82 #821B7B

triadic

#551B82 #82551B #1B8255

tetradic

#551B82 #82211B #48821B #1B7B82

square

#551B82 #82211B #48821B #1B7B82

split-complementary

#551B82 #7B821B #1B8221

monochromatic

#13061D #34104F #551B82 #7626B5 #9540D7

Accessibility & contrast

On white

11.26

#551B82 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#551B82 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #551B82

11.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##551B82	#FFFFFF	#000000	##FFFFFF
##551B82	1.00	11.26	1.87	11.26
#FFFFFF	11.26	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003985

Deuteranopia (green-blind)

#003B80

Tritanopia (blue-blind)

#4D354E

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #551b82;
/* rgb */ color: rgb(85, 27, 130);
/* oklch */ color: oklch(37.1% 0.161 305.2);

Tailwind

colors: {
  custom: {
    50: '#8a5ea7',
    500: '#551b82',
    950: '#000000',
  },
}

SCSS

$custom: #551b82;
$custom-light: #8a5ea7;
$custom-dark: #000000;

JSON

{
  "hex": "#551b82",
  "rgb": {
    "r": 85,
    "g": 27,
    "b": 130
  },
  "hsl": {
    "h": 273.786,
    "s": 65.605,
    "l": 30.784
  },
  "oklch": {
    "l": 0.37147,
    "c": 0.16126,
    "h": 305.2
  },
  "luminance": 0.04327
}

Semantic roles & 50–950 ramp

primary

#551B82

secondary

#75B643

accent

#E93F89

background

#F8F5FA

surface

#F0E9F4

border

#CBC5CE

text

#0C050F

muted

#7D797F

Preview Lab

Preview with #551B82

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

Preview Lab → · Contrast checker → · Palette generator →