#551B8F#551B8F

#551B8F is a dark, vivid violet. Relative luminance 0.047; OKLCH L 38.3% C 0.175 H 300.7°. Best body text is #FFFFFF at 10.83:1 contrast (WCAG AA passes).

Color values

HEX	#551B8F
RGB	rgb(85, 27, 143)
HSL	hsl(270, 68%, 33%)
HSV	hsv(270, 81%, 56%)
CMYK	cmyk(40.6%, 81.1%, 0%, 43.9%)
CIE-LAB	lab(25.86, 48.28, -52.56)
CIE-LCH	lch(25.86, 71.37, 312.57°)
OKLab	oklab(38.29% 0.0893 -0.1502)
OKLCH	oklch(38.29% 0.175 300.7)
XYZ	xyz(9.0949, 4.6983, 26.4090)
Luminance	0.0470 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#551B8F #558F1B

analogous

#1B1B8F #551B8F #8F1B8F

triadic

#551B8F #8F551B #1B8F55

tetradic

#551B8F #8F1B1B #558F1B #1B8F8F

square

#551B8F #8F1B1B #558F1B #1B8F8F

split-complementary

#551B8F #8F8F1B #1B8F1B

monochromatic

#180828 #36115C #551B8F #7425C2 #9248DC

Accessibility & contrast

On white

10.83

#551B8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#551B8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #551B8F

10.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##551B8F	#FFFFFF	#000000	##FFFFFF
##551B8F	1.00	10.83	1.94	10.83
#FFFFFF	10.83	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D92

Deuteranopia (green-blind)

#003C8D

Tritanopia (blue-blind)

#483B55

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #551b8f;
/* rgb */ color: rgb(85, 27, 143);
/* oklch */ color: oklch(38.3% 0.175 300.7);

Tailwind

colors: {
  custom: {
    50: '#8b5fb1',
    500: '#551b8f',
    950: '#000000',
  },
}

SCSS

$custom: #551b8f;
$custom-light: #8b5fb1;
$custom-dark: #000000;

JSON

{
  "hex": "#551b8f",
  "rgb": {
    "r": 85,
    "g": 27,
    "b": 143
  },
  "hsl": {
    "h": 270,
    "s": 68.235,
    "l": 33.333
  },
  "oklch": {
    "l": 0.3829,
    "c": 0.17477,
    "h": 300.7
  },
  "luminance": 0.04698
}

Semantic roles & 50–950 ramp

primary

#551B8F

secondary

#83BE48

accent

#EB3D94

background

#F8F5FB

surface

#F0EAF6

border

#CBC6D0

text

#0D0511

muted

#7D7980

Preview Lab

Preview with #551B8F

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

Preview Lab → · Contrast checker → · Palette generator →