#511F83#511F83

#511F83 is a dark, vivid violet. Relative luminance 0.044; OKLCH L 37.1% C 0.157 H 301.9°. Best body text is #FFFFFF at 11.21:1 contrast (WCAG AA passes).

Color values

HEX	#511F83
RGB	rgb(81, 31, 131)
HSL	hsl(270, 62%, 32%)
HSV	hsv(270, 76%, 51%)
CMYK	cmyk(38.2%, 76.3%, 0%, 48.6%)
CIE-LAB	lab(24.85, 42.84, -46.73)
CIE-LCH	lch(24.85, 63.40, 312.52°)
OKLab	oklab(37.14% 0.0829 -0.1333)
OKLCH	oklch(37.14% 0.157 301.9)
XYZ	xyz(7.9791, 4.3680, 21.8911)
Luminance	0.0437 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Indigo

#4B0082

ΔE00 4.16

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511F83 #51831F

analogous

#1F1F83 #511F83 #831F83

triadic

#511F83 #83511F #1F8351

tetradic

#511F83 #831F1F #51831F #1F8383

square

#511F83 #831F1F #51831F #1F8383

split-complementary

#511F83 #83831F #1F831F

monochromatic

#140820 #321352 #511F83 #702BB4 #8E49D4

Accessibility & contrast

On white

11.21

#511F83 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#511F83 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511F83

11.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511F83	#FFFFFF	#000000	##FFFFFF
##511F83	1.00	11.21	1.87	11.21
#FFFFFF	11.21	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A86

Deuteranopia (green-blind)

#003B81

Tritanopia (blue-blind)

#46384F

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #511f83;
/* rgb */ color: rgb(81, 31, 131);
/* oklch */ color: oklch(37.1% 0.157 301.9);

Tailwind

colors: {
  custom: {
    50: '#8760a8',
    500: '#511f83',
    950: '#000000',
  },
}

SCSS

$custom: #511f83;
$custom-light: #8760a8;
$custom-dark: #000000;

JSON

{
  "hex": "#511f83",
  "rgb": {
    "r": 81,
    "g": 31,
    "b": 131
  },
  "hsl": {
    "h": 270,
    "s": 61.728,
    "l": 31.765
  },
  "oklch": {
    "l": 0.37142,
    "c": 0.15695,
    "h": 301.9
  },
  "luminance": 0.04368
}

Semantic roles & 50–950 ramp

primary

#511F83

secondary

#7FB648

accent

#E54394

background

#F8F5FA

surface

#F0EAF4

border

#CBC6CE

text

#0C0510

muted

#7D797F

Preview Lab

Preview with #511F83

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

Preview Lab → · Contrast checker → · Palette generator →