#551B7C#551B7C

#551B7C is a dark, vivid violet. Relative luminance 0.042; OKLCH L 36.6% C 0.155 H 307.5°. Best body text is #FFFFFF at 11.45:1 contrast (WCAG AA passes).

Color values

HEX	#551B7C
RGB	rgb(85, 27, 124)
HSL	hsl(276, 64%, 30%)
HSV	hsv(276, 78%, 49%)
CMYK	cmyk(31.5%, 78.2%, 0%, 51.4%)
CIE-LAB	lab(24.23, 43.66, -43.30)
CIE-LCH	lch(24.23, 61.49, 315.24°)
OKLab	oklab(36.64% 0.0943 -0.123)
OKLCH	oklch(36.64% 0.155 307.5)
XYZ	xyz(7.7756, 4.1705, 19.4602)
Luminance	0.0417 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Indigo

#4B0082

ΔE00 4.23

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#551B7C #427C1B

analogous

#241B7C #551B7C #7C1B73

triadic

#551B7C #7C551B #1B7C55

tetradic

#551B7C #7C241B #427C1B #1B737C

square

#551B7C #7C241B #427C1B #1B737C

split-complementary

#551B7C #737C1B #1B7C24

monochromatic

#110519 #33104A #551B7C #7726AE #983DD5

Accessibility & contrast

On white

11.45

#551B7C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#551B7C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #551B7C

11.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##551B7C	#FFFFFF	#000000	##FFFFFF
##551B7C	1.00	11.45	1.83	11.45
#FFFFFF	11.45	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00387F

Deuteranopia (green-blind)

#003A7A

Tritanopia (blue-blind)

#4E334A

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #551b7c;
/* rgb */ color: rgb(85, 27, 124);
/* oklch */ color: oklch(36.6% 0.155 307.5);

Tailwind

colors: {
  custom: {
    50: '#895ea3',
    500: '#551b7c',
    950: '#000000',
  },
}

SCSS

$custom: #551b7c;
$custom-light: #895ea3;
$custom-dark: #000000;

JSON

{
  "hex": "#551b7c",
  "rgb": {
    "r": 85,
    "g": 27,
    "b": 124
  },
  "hsl": {
    "h": 275.876,
    "s": 64.238,
    "l": 29.608
  },
  "oklch": {
    "l": 0.36642,
    "c": 0.15503,
    "h": 307.5
  },
  "luminance": 0.0417
}

Semantic roles & 50–950 ramp

primary

#551B7C

secondary

#6FB043

accent

#E74184

background

#F8F5FA

surface

#F0E9F4

border

#CBC5CE

text

#0C050F

muted

#7D797F

Preview Lab

Preview with #551B7C

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

Preview Lab → · Contrast checker → · Palette generator →