#551381#551381

#551381 is a dark, vivid violet. Relative luminance 0.040; OKLCH L 36.3% C 0.168 H 306.4°. Best body text is #FFFFFF at 11.69:1 contrast (WCAG AA passes).

Color values

HEX	#551381
RGB	rgb(85, 19, 129)
HSL	hsl(276, 74%, 29%)
HSV	hsv(276, 85%, 51%)
CMYK	cmyk(34.1%, 85.3%, 0%, 49.4%)
CIE-LAB	lab(23.61, 47.84, -47.47)
CIE-LCH	lch(23.61, 67.39, 315.22°)
OKLab	oklab(36.34% 0.0998 -0.1352)
OKLCH	oklch(36.34% 0.168 306.4)
XYZ	xyz(7.9408, 3.9821, 21.1149)
Luminance	0.0398 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Indigo

#4B0082

ΔE00 2.89

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#551381 #3F8113

analogous

#1E1381 #551381 #811376

triadic

#551381 #815513 #138155

tetradic

#551381 #811E13 #3F8113 #137681

square

#551381 #811E13 #3F8113 #137681

split-complementary

#551381 #768113 #13811E

monochromatic

#12041B #320B4C #551381 #781BB6 #992EE0

Accessibility & contrast

On white

11.69

#551381 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#551381 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #551381

11.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##551381	#FFFFFF	#000000	##FFFFFF
##551381	1.00	11.69	1.80	11.69
#FFFFFF	11.69	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003684

Deuteranopia (green-blind)

#00397F

Tritanopia (blue-blind)

#4D324C

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #551381;
/* rgb */ color: rgb(85, 19, 129);
/* oklch */ color: oklch(36.3% 0.168 306.4);

Tailwind

colors: {
  custom: {
    50: '#8a5ba6',
    500: '#551381',
    950: '#000000',
  },
}

SCSS

$custom: #551381;
$custom-light: #8a5ba6;
$custom-dark: #000000;

JSON

{
  "hex": "#551381",
  "rgb": {
    "r": 85,
    "g": 19,
    "b": 129
  },
  "hsl": {
    "h": 276,
    "s": 74.324,
    "l": 29.02
  },
  "oklch": {
    "l": 0.36344,
    "c": 0.16804,
    "h": 306.4
  },
  "luminance": 0.03982
}

Semantic roles & 50–950 ramp

primary

#551381

secondary

#6BB63A

accent

#F13781

background

#F8F5FA

surface

#F0E9F4

border

#CBC5CE

text

#0C040F

muted

#7D797F

Preview Lab

Preview with #551381

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

Preview Lab → · Contrast checker → · Palette generator →