#511F71#511F71

#511F71 is a dark, vivid violet. Relative luminance 0.039; OKLCH L 35.7% C 0.137 H 309.0°. Best body text is #FFFFFF at 11.77:1 contrast (WCAG AA passes).

Color values

HEX	#511F71
RGB	rgb(81, 31, 113)
HSL	hsl(277, 57%, 28%)
HSV	hsv(277, 73%, 44%)
CMYK	cmyk(28.3%, 72.6%, 0%, 55.7%)
CIE-LAB	lab(23.41, 38.34, -37.62)
CIE-LCH	lch(23.41, 53.71, 315.54°)
OKLab	oklab(35.67% 0.0862 -0.1065)
OKLCH	oklch(35.67% 0.137 309)
XYZ	xyz(6.8634, 3.9217, 16.0150)
Luminance	0.0392 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511F71 #3F711F

analogous

#281F71 #511F71 #711F68

triadic

#511F71 #71511F #1F7151

tetradic

#511F71 #71281F #3F711F #1F6871

square

#511F71 #71281F #3F711F #1F6871

split-complementary

#511F71 #68711F #1F7128

monochromatic

#110718 #2F1241 #511F71 #732CA1 #9440CB

Accessibility & contrast

On white

11.77

#511F71 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#511F71 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511F71

11.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511F71	#FFFFFF	#000000	##FFFFFF
##511F71	1.00	11.77	1.78	11.77
#FFFFFF	11.77	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003673

Deuteranopia (green-blind)

#0E386F

Tritanopia (blue-blind)

#4C3145

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #511f71;
/* rgb */ color: rgb(81, 31, 113);
/* oklch */ color: oklch(35.7% 0.137 309.0);

Tailwind

colors: {
  custom: {
    50: '#855f9a',
    500: '#511f71',
    950: '#000000',
  },
}

SCSS

$custom: #511f71;
$custom-light: #855f9a;
$custom-dark: #000000;

JSON

{
  "hex": "#511f71",
  "rgb": {
    "r": 81,
    "g": 31,
    "b": 113
  },
  "hsl": {
    "h": 276.585,
    "s": 56.944,
    "l": 28.235
  },
  "oklch": {
    "l": 0.35666,
    "c": 0.13701,
    "h": 309
  },
  "luminance": 0.03922
}

Semantic roles & 50–950 ramp

primary

#511F71

secondary

#6CA547

accent

#E04883

background

#F8F5F9

surface

#F0E9F2

border

#CBC5CC

text

#0B050E

muted

#7C797E

Preview Lab

Preview with #511F71

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

Preview Lab → · Contrast checker → · Palette generator →