#551687#551687

#551687 is a dark, vivid violet. Relative luminance 0.043; OKLCH L 37.1% C 0.171 H 304.0°. Best body text is #FFFFFF at 11.35:1 contrast (WCAG AA passes).

Color values

HEX	#551687
RGB	rgb(85, 22, 135)
HSL	hsl(273, 72%, 31%)
HSV	hsv(273, 84%, 53%)
CMYK	cmyk(37%, 83.7%, 0%, 47.1%)
CIE-LAB	lab(24.50, 48.21, -49.80)
CIE-LCH	lch(24.50, 69.32, 314.07°)
OKLab	oklab(37.12% 0.0957 -0.1421)
OKLCH	oklch(37.12% 0.171 304)
XYZ	xyz(8.4054, 4.2544, 23.2953)
Luminance	0.0425 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Indigo

#4B0082

ΔE00 3.09

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#551687 #488716

analogous

#1C1687 #551687 #871680

triadic

#551687 #875516 #168755

tetradic

#551687 #871C16 #488716 #168087

square

#551687 #871C16 #488716 #168087

split-complementary

#551687 #808716 #16871C

monochromatic

#13051E #340D52 #551687 #761FBC #9539DF

Accessibility & contrast

On white

11.35

#551687 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#551687 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #551687

11.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##551687	#FFFFFF	#000000	##FFFFFF
##551687	1.00	11.35	1.85	11.35
#FFFFFF	11.35	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00398A

Deuteranopia (green-blind)

#003A85

Tritanopia (blue-blind)

#4B3550

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #551687;
/* rgb */ color: rgb(85, 22, 135);
/* oklch */ color: oklch(37.1% 0.171 304.0);

Tailwind

colors: {
  custom: {
    50: '#8a5dab',
    500: '#551687',
    950: '#000000',
  },
}

SCSS

$custom: #551687;
$custom-light: #8a5dab;
$custom-dark: #000000;

JSON

{
  "hex": "#551687",
  "rgb": {
    "r": 85,
    "g": 22,
    "b": 135
  },
  "hsl": {
    "h": 273.451,
    "s": 71.975,
    "l": 30.784
  },
  "oklch": {
    "l": 0.37122,
    "c": 0.1713,
    "h": 304
  },
  "luminance": 0.04254
}

Semantic roles & 50–950 ramp

primary

#551687

secondary

#75BB3E

accent

#EF3989

background

#F8F5FA

surface

#F0E9F4

border

#CBC5CE

text

#0C0510

muted

#7D797F

Preview Lab

Preview with #551687

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

Preview Lab → · Contrast checker → · Palette generator →