#551E81#551E81

#551E81 is a dark, vivid violet. Relative luminance 0.044; OKLCH L 37.4% C 0.157 H 305.2°. Best body text is #FFFFFF at 11.12:1 contrast (WCAG AA passes).

Color values

HEX	#551E81
RGB	rgb(85, 30, 129)
HSL	hsl(273, 62%, 31%)
HSV	hsv(273, 77%, 51%)
CMYK	cmyk(34.1%, 76.7%, 0%, 49.4%)
CIE-LAB	lab(25.09, 43.57, -45.06)
CIE-LCH	lch(25.09, 62.68, 314.04°)
OKLab	oklab(37.38% 0.0903 -0.1282)
OKLCH	oklch(37.38% 0.157 305.2)
XYZ	xyz(8.1721, 4.4449, 21.1920)
Luminance	0.0445 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Indigo

#4B0082

ΔE00 4.34

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#551E81 #4A811E

analogous

#231E81 #551E81 #811E7B

triadic

#551E81 #81551E #1E8155

tetradic

#551E81 #81231E #4A811E #1E7B81

square

#551E81 #81231E #4A811E #1E7B81

split-complementary

#551E81 #7B811E #1E8123

monochromatic

#14071E #34124F #551E81 #762AB3 #9546D4

Accessibility & contrast

On white

11.12

#551E81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#551E81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #551E81

11.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##551E81	#FFFFFF	#000000	##FFFFFF
##551E81	1.00	11.12	1.89	11.12
#FFFFFF	11.12	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A84

Deuteranopia (green-blind)

#003C7F

Tritanopia (blue-blind)

#4D364E

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #551e81;
/* rgb */ color: rgb(85, 30, 129);
/* oklch */ color: oklch(37.4% 0.157 305.2);

Tailwind

colors: {
  custom: {
    50: '#8960a6',
    500: '#551e81',
    950: '#000000',
  },
}

SCSS

$custom: #551e81;
$custom-light: #8960a6;
$custom-dark: #000000;

JSON

{
  "hex": "#551e81",
  "rgb": {
    "r": 85,
    "g": 30,
    "b": 129
  },
  "hsl": {
    "h": 273.333,
    "s": 62.264,
    "l": 31.176
  },
  "oklch": {
    "l": 0.37379,
    "c": 0.15683,
    "h": 305.2
  },
  "luminance": 0.04445
}

Semantic roles & 50–950 ramp

primary

#551E81

secondary

#77B447

accent

#E5428B

background

#F8F5FA

surface

#F0EAF4

border

#CBC6CE

text

#0C050F

muted

#7D797F

Preview Lab

Preview with #551E81

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

Preview Lab → · Contrast checker → · Palette generator →