#511C71#511C71

#511C71 is a dark, vivid violet. Relative luminance 0.038; OKLCH L 35.3% C 0.141 H 309.4°. Best body text is #FFFFFF at 11.97:1 contrast (WCAG AA passes).

Color values

HEX	#511C71
RGB	rgb(81, 28, 113)
HSL	hsl(277, 60%, 28%)
HSV	hsv(277, 75%, 44%)
CMYK	cmyk(28.3%, 75.2%, 0%, 55.7%)
CIE-LAB	lab(22.90, 39.76, -38.44)
CIE-LCH	lch(22.90, 55.31, 315.97°)
OKLab	oklab(35.3% 0.0896 -0.1089)
OKLCH	oklch(35.3% 0.141 309.4)
XYZ	xyz(6.7886, 3.7722, 15.9901)
Luminance	0.0377 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511C71 #3C711C

analogous

#271C71 #511C71 #711C66

triadic

#511C71 #71511C #1C7151

tetradic

#511C71 #71271C #3C711C #1C6671

square

#511C71 #71271C #3C711C #1C6671

split-complementary

#511C71 #66711C #1C7127

monochromatic

#120619 #2E1040 #511C71 #7428A2 #9639CE

Accessibility & contrast

On white

11.97

#511C71 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#511C71 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511C71

11.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511C71	#FFFFFF	#000000	##FFFFFF
##511C71	1.00	11.97	1.75	11.97
#FFFFFF	11.97	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	11.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003473

Deuteranopia (green-blind)

#08376F

Tritanopia (blue-blind)

#4C2F44

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #511c71;
/* rgb */ color: rgb(81, 28, 113);
/* oklch */ color: oklch(35.3% 0.141 309.4);

Tailwind

colors: {
  custom: {
    50: '#855e9a',
    500: '#511c71',
    950: '#000000',
  },
}

SCSS

$custom: #511c71;
$custom-light: #855e9a;
$custom-dark: #000000;

JSON

{
  "hex": "#511c71",
  "rgb": {
    "r": 81,
    "g": 28,
    "b": 113
  },
  "hsl": {
    "h": 277.412,
    "s": 60.284,
    "l": 27.647
  },
  "oklch": {
    "l": 0.35304,
    "c": 0.141,
    "h": 309.4
  },
  "luminance": 0.03772
}

Semantic roles & 50–950 ramp

primary

#511C71

secondary

#68A643

accent

#E34480

background

#F8F5F9

surface

#F0E9F2

border

#CBC5CC

text

#0B040E

muted

#7C797E

Preview Lab

Preview with #511C71

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

Preview Lab → · Contrast checker → · Palette generator →