#551C7C#551C7C

#551C7C is a dark, vivid violet. Relative luminance 0.042; OKLCH L 36.7% C 0.154 H 307.3°. Best body text is #FFFFFF at 11.39:1 contrast (WCAG AA passes).

Color values

HEX	#551C7C
RGB	rgb(85, 28, 124)
HSL	hsl(276, 63%, 30%)
HSV	hsv(276, 77%, 49%)
CMYK	cmyk(31.5%, 77.4%, 0%, 51.4%)
CIE-LAB	lab(24.38, 43.23, -43.06)
CIE-LCH	lch(24.38, 61.02, 315.12°)
OKLab	oklab(36.75% 0.0934 -0.1223)
OKLCH	oklch(36.75% 0.154 307.3)
XYZ	xyz(7.7989, 4.2171, 19.4680)
Luminance	0.0422 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Indigo

#4B0082

ΔE00 4.38

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#551C7C #437C1C

analogous

#251C7C #551C7C #7C1C73

triadic

#551C7C #7C551C #1C7C55

tetradic

#551C7C #7C251C #437C1C #1C737C

square

#551C7C #7C251C #437C1C #1C737C

split-complementary

#551C7C #737C1C #1C7C25

monochromatic

#110619 #33114A #551C7C #7727AE #973FD4

Accessibility & contrast

On white

11.39

#551C7C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#551C7C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #551C7C

11.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##551C7C	#FFFFFF	#000000	##FFFFFF
##551C7C	1.00	11.39	1.84	11.39
#FFFFFF	11.39	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00387F

Deuteranopia (green-blind)

#003A7A

Tritanopia (blue-blind)

#4E334B

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #551c7c;
/* rgb */ color: rgb(85, 28, 124);
/* oklch */ color: oklch(36.7% 0.154 307.3);

Tailwind

colors: {
  custom: {
    50: '#895fa3',
    500: '#551c7c',
    950: '#000000',
  },
}

SCSS

$custom: #551c7c;
$custom-light: #895fa3;
$custom-dark: #000000;

JSON

{
  "hex": "#551c7c",
  "rgb": {
    "r": 85,
    "g": 28,
    "b": 124
  },
  "hsl": {
    "h": 275.625,
    "s": 63.158,
    "l": 29.804
  },
  "oklch": {
    "l": 0.36748,
    "c": 0.15387,
    "h": 307.3
  },
  "luminance": 0.04217
}

Semantic roles & 50–950 ramp

primary

#551C7C

secondary

#70B044

accent

#E64284

background

#F8F5FA

surface

#F0E9F4

border

#CBC5CE

text

#0C050F

muted

#7D797F

Preview Lab

Preview with #551C7C

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

Preview Lab → · Contrast checker → · Palette generator →