#511B90#511B90

#511B90 is a dark, vivid violet. Relative luminance 0.045; OKLCH L 37.9% C 0.175 H 298.2°. Best body text is #FFFFFF at 11.00:1 contrast (WCAG AA passes).

Color values

HEX	#511B90
RGB	rgb(81, 27, 144)
HSL	hsl(268, 68%, 34%)
HSV	hsv(268, 81%, 56%)
CMYK	cmyk(43.8%, 81.3%, 0%, 43.5%)
CIE-LAB	lab(25.40, 47.89, -53.95)
CIE-LCH	lch(25.40, 72.14, 311.60°)
OKLab	oklab(37.88% 0.0828 -0.1544)
OKLCH	oklch(37.88% 0.175 298.2)
XYZ	xyz(8.8180, 4.5467, 26.7932)
Luminance	0.0455 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511B90 #5A901B

analogous

#1B2090 #511B90 #8B1B90

triadic

#511B90 #90511B #1B9051

tetradic

#511B90 #901B20 #5A901B #1B908B

square

#511B90 #901B20 #5A901B #1B908B

split-complementary

#511B90 #908B1B #20901B

monochromatic

#170829 #34115C #511B90 #6E25C4 #8D49DD

Accessibility & contrast

On white

11.00

#511B90 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#511B90 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511B90

11.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511B90	#FFFFFF	#000000	##FFFFFF
##511B90	1.00	11.00	1.91	11.00
#FFFFFF	11.00	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	11.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C93

Deuteranopia (green-blind)

#003B8E

Tritanopia (blue-blind)

#413C56

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #511b90;
/* rgb */ color: rgb(81, 27, 144);
/* oklch */ color: oklch(37.9% 0.175 298.2);

Tailwind

colors: {
  custom: {
    50: '#895fb1',
    500: '#511b90',
    950: '#000000',
  },
}

SCSS

$custom: #511b90;
$custom-light: #895fb1;
$custom-dark: #000000;

JSON

{
  "hex": "#511b90",
  "rgb": {
    "r": 81,
    "g": 27,
    "b": 144
  },
  "hsl": {
    "h": 267.692,
    "s": 68.421,
    "l": 33.529
  },
  "oklch": {
    "l": 0.37883,
    "c": 0.17524,
    "h": 298.2
  },
  "luminance": 0.04547
}

Semantic roles & 50–950 ramp

primary

#511B90

secondary

#88BF48

accent

#EB3D9B

background

#F8F5FB

surface

#F0EAF6

border

#CBC6D0

text

#0C0511

muted

#7D7980

Preview Lab

Preview with #511B90

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

Preview Lab → · Contrast checker → · Palette generator →