#551C88#551C88

#551C88 is a dark, vivid violet. Relative luminance 0.045; OKLCH L 37.8% C 0.166 H 302.9°. Best body text is #FFFFFF at 11.01:1 contrast (WCAG AA passes).

Color values

HEX	#551C88
RGB	rgb(85, 28, 136)
HSL	hsl(272, 66%, 32%)
HSV	hsv(272, 79%, 53%)
CMYK	cmyk(37.5%, 79.4%, 0%, 46.7%)
CIE-LAB	lab(25.38, 46.15, -48.98)
CIE-LCH	lch(25.38, 67.29, 313.29°)
OKLab	oklab(37.77% 0.0905 -0.1397)
OKLCH	oklch(37.77% 0.166 302.9)
XYZ	xyz(8.6044, 4.5394, 23.7107)
Luminance	0.0454 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Indigo

#4B0082

ΔE00 3.90

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#551C88 #4F881C

analogous

#1F1C88 #551C88 #881C85

triadic

#551C88 #88551C #1C8855

tetradic

#551C88 #881F1C #4F881C #1C8588

square

#551C88 #881F1C #4F881C #1C8588

split-complementary

#551C88 #85881C #1C881F

monochromatic

#160722 #351255 #551C88 #7526BB #9346D9

Accessibility & contrast

On white

11.01

#551C88 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#551C88 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #551C88

11.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##551C88	#FFFFFF	#000000	##FFFFFF
##551C88	1.00	11.01	1.91	11.01
#FFFFFF	11.01	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	11.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B8B

Deuteranopia (green-blind)

#003C86

Tritanopia (blue-blind)

#4A3851

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #551c88;
/* rgb */ color: rgb(85, 28, 136);
/* oklch */ color: oklch(37.8% 0.166 302.9);

Tailwind

colors: {
  custom: {
    50: '#8a5fac',
    500: '#551c88',
    950: '#000000',
  },
}

SCSS

$custom: #551c88;
$custom-light: #8a5fac;
$custom-dark: #000000;

JSON

{
  "hex": "#551c88",
  "rgb": {
    "r": 85,
    "g": 28,
    "b": 136
  },
  "hsl": {
    "h": 271.667,
    "s": 65.854,
    "l": 32.157
  },
  "oklch": {
    "l": 0.37766,
    "c": 0.16646,
    "h": 302.9
  },
  "luminance": 0.04539
}

Semantic roles & 50–950 ramp

primary

#551C88

secondary

#7DBA45

accent

#E93F8F

background

#F8F5FA

surface

#F0EAF4

border

#CBC6CE

text

#0C0510

muted

#7D797F

Preview Lab

Preview with #551C88

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

Preview Lab → · Contrast checker → · Palette generator →