#551F82#551F82

#551F82 is a dark, vivid violet. Relative luminance 0.045; OKLCH L 37.6% C 0.157 H 304.6°. Best body text is #FFFFFF at 11.03:1 contrast (WCAG AA passes).

Color values

HEX	#551F82
RGB	rgb(85, 31, 130)
HSL	hsl(273, 61%, 32%)
HSV	hsv(273, 76%, 51%)
CMYK	cmyk(34.6%, 76.2%, 0%, 49%)
CIE-LAB	lab(25.33, 43.37, -45.30)
CIE-LCH	lch(25.33, 62.71, 313.75°)
OKLab	oklab(37.57% 0.0891 -0.1289)
OKLCH	oklch(37.57% 0.157 304.6)
XYZ	xyz(8.2646, 4.5230, 21.5524)
Luminance	0.0452 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Indigo

#4B0082

ΔE00 4.47

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#551F82 #4C821F

analogous

#231F82 #551F82 #821F7E

triadic

#551F82 #82551F #1F8255

tetradic

#551F82 #82231F #4C821F #1F7E82

square

#551F82 #82231F #4C821F #1F7E82

split-complementary

#551F82 #7E821F #1F8223

monochromatic

#14071F #351351 #551F82 #752BB3 #9448D3

Accessibility & contrast

On white

11.03

#551F82 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#551F82 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #551F82

11.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##551F82	#FFFFFF	#000000	##FFFFFF
##551F82	1.00	11.03	1.90	11.03
#FFFFFF	11.03	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B85

Deuteranopia (green-blind)

#003C80

Tritanopia (blue-blind)

#4C374F

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #551f82;
/* rgb */ color: rgb(85, 31, 130);
/* oklch */ color: oklch(37.6% 0.157 304.6);

Tailwind

colors: {
  custom: {
    50: '#8960a7',
    500: '#551f82',
    950: '#000000',
  },
}

SCSS

$custom: #551f82;
$custom-light: #8960a7;
$custom-dark: #000000;

JSON

{
  "hex": "#551f82",
  "rgb": {
    "r": 85,
    "g": 31,
    "b": 130
  },
  "hsl": {
    "h": 272.727,
    "s": 61.491,
    "l": 31.569
  },
  "oklch": {
    "l": 0.37574,
    "c": 0.15672,
    "h": 304.6
  },
  "luminance": 0.04523
}

Semantic roles & 50–950 ramp

primary

#551F82

secondary

#79B548

accent

#E5438D

background

#F8F5FA

surface

#F0EAF4

border

#CBC6CE

text

#0C050F

muted

#7D797F

Preview Lab

Preview with #551F82

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

Preview Lab → · Contrast checker → · Palette generator →