#551780#551780

#551780 is a dark, vivid violet. Relative luminance 0.041; OKLCH L 36.6% C 0.163 H 306.4°. Best body text is #FFFFFF at 11.53:1 contrast (WCAG AA passes).

Color values

HEX	#551780
RGB	rgb(85, 23, 128)
HSL	hsl(275, 70%, 30%)
HSV	hsv(275, 82%, 50%)
CMYK	cmyk(33.6%, 82%, 0%, 49.8%)
CIE-LAB	lab(24.01, 46.20, -46.19)
CIE-LCH	lch(24.01, 65.33, 315.01°)
OKLab	oklab(36.59% 0.097 -0.1315)
OKLCH	oklch(36.59% 0.163 306.4)
XYZ	xyz(7.9481, 4.1027, 20.7911)
Luminance	0.0410 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Indigo

#4B0082

ΔE00 3.39

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#551780 #428017

analogous

#211780 #551780 #801776

triadic

#551780 #805517 #178055

tetradic

#551780 #802117 #428017 #177680

square

#551780 #802117 #428017 #177680

split-complementary

#551780 #768017 #178021

monochromatic

#11051A #330E4C #551780 #7720B4 #9836DB

Accessibility & contrast

On white

11.53

#551780 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#551780 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #551780

11.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##551780	#FFFFFF	#000000	##FFFFFF
##551780	1.00	11.53	1.82	11.53
#FFFFFF	11.53	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003783

Deuteranopia (green-blind)

#00397E

Tritanopia (blue-blind)

#4D334C

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #551780;
/* rgb */ color: rgb(85, 23, 128);
/* oklch */ color: oklch(36.6% 0.163 306.4);

Tailwind

colors: {
  custom: {
    50: '#8a5da6',
    500: '#551780',
    950: '#000000',
  },
}

SCSS

$custom: #551780;
$custom-light: #8a5da6;
$custom-dark: #000000;

JSON

{
  "hex": "#551780",
  "rgb": {
    "r": 85,
    "g": 23,
    "b": 128
  },
  "hsl": {
    "h": 275.429,
    "s": 69.536,
    "l": 29.608
  },
  "oklch": {
    "l": 0.36593,
    "c": 0.16337,
    "h": 306.4
  },
  "luminance": 0.04103
}

Semantic roles & 50–950 ramp

primary

#551780

secondary

#6FB43E

accent

#EC3B84

background

#F8F5FA

surface

#F0E9F4

border

#CBC5CE

text

#0C040F

muted

#7D797F

Preview Lab

Preview with #551780

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

Preview Lab → · Contrast checker → · Palette generator →