#551F78#551F78

#551F78 is a dark, vivid violet. Relative luminance 0.043; OKLCH L 36.8% C 0.146 H 308.6°. Best body text is #FFFFFF at 11.33:1 contrast (WCAG AA passes).

Color values

HEX	#551F78
RGB	rgb(85, 31, 120)
HSL	hsl(276, 59%, 30%)
HSV	hsv(276, 74%, 47%)
CMYK	cmyk(29.2%, 74.2%, 0%, 52.9%)
CIE-LAB	lab(24.54, 40.92, -40.25)
CIE-LCH	lch(24.54, 57.40, 315.47°)
OKLab	oklab(36.76% 0.091 -0.1141)
OKLCH	oklch(36.76% 0.146 308.6)
XYZ	xyz(7.6258, 4.2675, 18.1876)
Luminance	0.0427 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#551F78 #42781F

analogous

#281F78 #551F78 #781F6F

triadic

#551F78 #78551F #1F7855

tetradic

#551F78 #78281F #42781F #1F6F78

square

#551F78 #78281F #42781F #1F6F78

split-complementary

#551F78 #6F781F #1F7828

monochromatic

#110618 #331247 #551F78 #772CA9 #9843CE

Accessibility & contrast

On white

11.33

#551F78 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#551F78 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #551F78

11.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##551F78	#FFFFFF	#000000	##FFFFFF
##551F78	1.00	11.33	1.85	11.33
#FFFFFF	11.33	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00387B

Deuteranopia (green-blind)

#083B76

Tritanopia (blue-blind)

#503349

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #551f78;
/* rgb */ color: rgb(85, 31, 120);
/* oklch */ color: oklch(36.8% 0.146 308.6);

Tailwind

colors: {
  custom: {
    50: '#8960a0',
    500: '#551f78',
    950: '#000000',
  },
}

SCSS

$custom: #551f78;
$custom-light: #8960a0;
$custom-dark: #000000;

JSON

{
  "hex": "#551f78",
  "rgb": {
    "r": 85,
    "g": 31,
    "b": 120
  },
  "hsl": {
    "h": 276.404,
    "s": 58.94,
    "l": 29.608
  },
  "oklch": {
    "l": 0.36762,
    "c": 0.14593,
    "h": 308.6
  },
  "luminance": 0.04267
}

Semantic roles & 50–950 ramp

primary

#551F78

secondary

#6FAB47

accent

#E24683

background

#F8F5F9

surface

#F0EAF2

border

#CBC6CC

text

#0C050F

muted

#7D797E

Preview Lab

Preview with #551F78

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

Preview Lab → · Contrast checker → · Palette generator →