#551D75#551D75

#551D75 is a dark, vivid violet. Relative luminance 0.041; OKLCH L 36.3% C 0.145 H 310.1°. Best body text is #FFFFFF at 11.55:1 contrast (WCAG AA passes).

Color values

HEX	#551D75
RGB	rgb(85, 29, 117)
HSL	hsl(278, 60%, 29%)
HSV	hsv(278, 75%, 46%)
CMYK	cmyk(27.4%, 75.2%, 0%, 54.1%)
CIE-LAB	lab(23.98, 41.13, -39.24)
CIE-LCH	lch(23.98, 56.84, 316.35°)
OKLab	oklab(36.3% 0.0936 -0.1111)
OKLCH	oklch(36.3% 0.145 310.1)
XYZ	xyz(7.3959, 4.0945, 17.2269)
Luminance	0.0409 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#551D75 #3D751D

analogous

#291D75 #551D75 #751D69

triadic

#551D75 #75551D #1D7555

tetradic

#551D75 #75291D #3D751D #1D6975

square

#551D75 #75291D #3D751D #1D6975

split-complementary

#551D75 #69751D #1D7529

monochromatic

#120619 #311144 #551D75 #7929A6 #9A3DCF

Accessibility & contrast

On white

11.55

#551D75 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#551D75 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #551D75

11.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##551D75	#FFFFFF	#000000	##FFFFFF
##551D75	1.00	11.55	1.82	11.55
#FFFFFF	11.55	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003778

Deuteranopia (green-blind)

#0B3A73

Tritanopia (blue-blind)

#513147

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #551d75;
/* rgb */ color: rgb(85, 29, 117);
/* oklch */ color: oklch(36.3% 0.145 310.1);

Tailwind

colors: {
  custom: {
    50: '#885f9d',
    500: '#551d75',
    950: '#000000',
  },
}

SCSS

$custom: #551d75;
$custom-light: #885f9d;
$custom-dark: #000000;

JSON

{
  "hex": "#551d75",
  "rgb": {
    "r": 85,
    "g": 29,
    "b": 117
  },
  "hsl": {
    "h": 278.182,
    "s": 60.274,
    "l": 28.627
  },
  "oklch": {
    "l": 0.36295,
    "c": 0.14528,
    "h": 310.1
  },
  "luminance": 0.04094
}

Semantic roles & 50–950 ramp

primary

#551D75

secondary

#69A945

accent

#E3447E

background

#F8F5F9

surface

#F0E9F2

border

#CBC5CC

text

#0C050E

muted

#7D797E

Preview Lab

Preview with #551D75

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

Preview Lab → · Contrast checker → · Palette generator →