#551B68#551B68

#551B68 is a dark, vivid purple. Relative luminance 0.037; OKLCH L 35.1% C 0.134 H 316.5°. Best body text is #FFFFFF at 12.05:1 contrast (WCAG AA passes).

Color values

HEX	#551B68
RGB	rgb(85, 27, 104)
HSL	hsl(285, 59%, 26%)
HSV	hsv(285, 74%, 41%)
CMYK	cmyk(18.3%, 74%, 0%, 59.2%)
CIE-LAB	lab(22.71, 39.06, -32.90)
CIE-LCH	lch(22.71, 51.07, 319.89°)
OKLab	oklab(35.08% 0.0975 -0.0925)
OKLCH	oklch(35.08% 0.134 316.5)
XYZ	xyz(6.6366, 3.7149, 13.4615)
Luminance	0.0372 (WCAG relative)
Temperature	cool
Family	purple

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#551B68 #2E681B

analogous

#2E1B68 #551B68 #681B54

triadic

#551B68 #68551B #1B6855

tetradic

#551B68 #682E1B #2E681B #1B5468

square

#551B68 #682E1B #2E681B #1B5468

split-complementary

#551B68 #54681B #1B682E

monochromatic

#140618 #2D0E37 #551B68 #7D2899 #A434C9

Accessibility & contrast

On white

12.05

#551B68 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#551B68 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #551B68

12.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##551B68	#FFFFFF	#000000	##FFFFFF
##551B68	1.00	12.05	1.74	12.05
#FFFFFF	12.05	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00336A

Deuteranopia (green-blind)

#1B3866

Tritanopia (blue-blind)

#542A3F

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #551b68;
/* rgb */ color: rgb(85, 27, 104);
/* oklch */ color: oklch(35.1% 0.134 316.5);

Tailwind

colors: {
  custom: {
    50: '#885d94',
    500: '#551b68',
    950: '#000000',
  },
}

SCSS

$custom: #551b68;
$custom-light: #885d94;
$custom-dark: #000000;

JSON

{
  "hex": "#551b68",
  "rgb": {
    "r": 85,
    "g": 27,
    "b": 104
  },
  "hsl": {
    "h": 285.195,
    "s": 58.779,
    "l": 25.686
  },
  "oklch": {
    "l": 0.35082,
    "c": 0.13438,
    "h": 316.5
  },
  "luminance": 0.03715
}

Semantic roles & 50–950 ramp

primary

#551B68

secondary

#589D42

accent

#E2466C

background

#F8F5F9

surface

#F0E9F1

border

#CBC5CB

text

#0C040D

muted

#7D797E

Preview Lab

Preview with #551B68

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

Preview Lab → · Contrast checker → · Palette generator →