#511B8F#511B8F

#511B8F is a dark, vivid violet. Relative luminance 0.045; OKLCH L 37.8% C 0.174 H 298.5°. Best body text is #FFFFFF at 11.03:1 contrast (WCAG AA passes).

Color values

HEX	#511B8F
RGB	rgb(81, 27, 143)
HSL	hsl(268, 68%, 33%)
HSV	hsv(268, 81%, 56%)
CMYK	cmyk(43.4%, 81.1%, 0%, 43.9%)
CIE-LAB	lab(25.31, 47.64, -53.48)
CIE-LCH	lch(25.31, 71.62, 311.70°)
OKLab	oklab(37.79% 0.0831 -0.1531)
OKLCH	oklch(37.79% 0.174 298.5)
XYZ	xyz(8.7419, 4.5162, 26.3924)
Luminance	0.0452 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511B8F #598F1B

analogous

#1B1F8F #511B8F #8B1B8F

triadic

#511B8F #8F511B #1B8F51

tetradic

#511B8F #8F1B1F #598F1B #1B8F8B

square

#511B8F #8F1B1F #598F1B #1B8F8B

split-complementary

#511B8F #8F8B1B #1F8F1B

monochromatic

#170828 #34115C #511B8F #6E25C2 #8D48DC

Accessibility & contrast

On white

11.03

#511B8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#511B8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511B8F

11.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511B8F	#FFFFFF	#000000	##FFFFFF
##511B8F	1.00	11.03	1.90	11.03
#FFFFFF	11.03	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C92

Deuteranopia (green-blind)

#003B8D

Tritanopia (blue-blind)

#413B55

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #511b8f;
/* rgb */ color: rgb(81, 27, 143);
/* oklch */ color: oklch(37.8% 0.174 298.5);

Tailwind

colors: {
  custom: {
    50: '#895fb1',
    500: '#511b8f',
    950: '#000000',
  },
}

SCSS

$custom: #511b8f;
$custom-light: #895fb1;
$custom-dark: #000000;

JSON

{
  "hex": "#511b8f",
  "rgb": {
    "r": 81,
    "g": 27,
    "b": 143
  },
  "hsl": {
    "h": 267.931,
    "s": 68.235,
    "l": 33.333
  },
  "oklch": {
    "l": 0.3779,
    "c": 0.17418,
    "h": 298.5
  },
  "luminance": 0.04516
}

Semantic roles & 50–950 ramp

primary

#511B8F

secondary

#87BE48

accent

#EB3D9A

background

#F8F5FB

surface

#F0EAF6

border

#CBC6D0

text

#0C0511

muted

#7D7980

Preview Lab

Preview with #511B8F

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

Preview Lab → · Contrast checker → · Palette generator →