#551C87#551C87

#551C87 is a dark, vivid violet. Relative luminance 0.045; OKLCH L 37.7% C 0.165 H 303.3°. Best body text is #FFFFFF at 11.04:1 contrast (WCAG AA passes).

Color values

HEX	#551C87
RGB	rgb(85, 28, 135)
HSL	hsl(272, 66%, 32%)
HSV	hsv(272, 79%, 53%)
CMYK	cmyk(37%, 79.3%, 0%, 47.1%)
CIE-LAB	lab(25.29, 45.90, -48.50)
CIE-LCH	lch(25.29, 66.77, 313.42°)
OKLab	oklab(37.68% 0.0907 -0.1383)
OKLCH	oklch(37.68% 0.165 303.3)
XYZ	xyz(8.5337, 4.5111, 23.3381)
Luminance	0.0451 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Indigo

#4B0082

ΔE00 3.89

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#551C87 #4E871C

analogous

#201C87 #551C87 #871C84

triadic

#551C87 #87551C #1C8755

tetradic

#551C87 #87201C #4E871C #1C8487

square

#551C87 #87201C #4E871C #1C8487

split-complementary

#551C87 #84871C #1C8720

monochromatic

#150722 #351154 #551C87 #7527BA #9445D8

Accessibility & contrast

On white

11.04

#551C87 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#551C87 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #551C87

11.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##551C87	#FFFFFF	#000000	##FFFFFF
##551C87	1.00	11.04	1.90	11.04
#FFFFFF	11.04	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B8A

Deuteranopia (green-blind)

#003C85

Tritanopia (blue-blind)

#4B3851

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #551c87;
/* rgb */ color: rgb(85, 28, 135);
/* oklch */ color: oklch(37.7% 0.165 303.3);

Tailwind

colors: {
  custom: {
    50: '#8a5fab',
    500: '#551c87',
    950: '#000000',
  },
}

SCSS

$custom: #551c87;
$custom-light: #8a5fab;
$custom-dark: #000000;

JSON

{
  "hex": "#551c87",
  "rgb": {
    "r": 85,
    "g": 28,
    "b": 135
  },
  "hsl": {
    "h": 271.963,
    "s": 65.644,
    "l": 31.961
  },
  "oklch": {
    "l": 0.37679,
    "c": 0.16542,
    "h": 303.3
  },
  "luminance": 0.04511
}

Semantic roles & 50–950 ramp

primary

#551C87

secondary

#7CBA45

accent

#E93F8E

background

#F8F5FA

surface

#F0EAF4

border

#CBC6CE

text

#0C0510

muted

#7D797F

Preview Lab

Preview with #551C87

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

Preview Lab → · Contrast checker → · Palette generator →