#551D74#551D74

#551D74 is a dark, vivid violet. Relative luminance 0.041; OKLCH L 36.2% C 0.144 H 310.6°. Best body text is #FFFFFF at 11.58:1 contrast (WCAG AA passes).

Color values

HEX	#551D74
RGB	rgb(85, 29, 116)
HSL	hsl(279, 60%, 28%)
HSV	hsv(279, 75%, 45%)
CMYK	cmyk(26.7%, 75%, 0%, 54.5%)
CIE-LAB	lab(23.91, 40.89, -38.72)
CIE-LCH	lch(23.91, 56.32, 316.56°)
OKLab	oklab(36.22% 0.0938 -0.1096)
OKLCH	oklch(36.22% 0.144 310.6)
XYZ	xyz(7.3375, 4.0711, 16.9189)
Luminance	0.0407 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#551D74 #3C741D

analogous

#291D74 #551D74 #741D67

triadic

#551D74 #74551D #1D7455

tetradic

#551D74 #74291D #3C741D #1D6774

square

#551D74 #74291D #3C741D #1D6774

split-complementary

#551D74 #67741D #1D7429

monochromatic

#120618 #311143 #551D74 #7929A5 #9B3DCE

Accessibility & contrast

On white

11.58

#551D74 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#551D74 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #551D74

11.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##551D74	#FFFFFF	#000000	##FFFFFF
##551D74	1.00	11.58	1.81	11.58
#FFFFFF	11.58	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003676

Deuteranopia (green-blind)

#0D3A72

Tritanopia (blue-blind)

#513046

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #551d74;
/* rgb */ color: rgb(85, 29, 116);
/* oklch */ color: oklch(36.2% 0.144 310.6);

Tailwind

colors: {
  custom: {
    50: '#885f9d',
    500: '#551d74',
    950: '#000000',
  },
}

SCSS

$custom: #551d74;
$custom-light: #885f9d;
$custom-dark: #000000;

JSON

{
  "hex": "#551d74",
  "rgb": {
    "r": 85,
    "g": 29,
    "b": 116
  },
  "hsl": {
    "h": 278.621,
    "s": 60,
    "l": 28.431
  },
  "oklch": {
    "l": 0.36216,
    "c": 0.14422,
    "h": 310.6
  },
  "luminance": 0.04071
}

Semantic roles & 50–950 ramp

primary

#551D74

secondary

#68A845

accent

#E3457D

background

#F8F5F9

surface

#F0E9F2

border

#CBC5CC

text

#0C050E

muted

#7D797E

Preview Lab

Preview with #551D74

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

Preview Lab → · Contrast checker → · Palette generator →