#511A8E#511A8E

#511A8E is a dark, vivid violet. Relative luminance 0.044; OKLCH L 37.6% C 0.174 H 298.9°. Best body text is #FFFFFF at 11.12:1 contrast (WCAG AA passes).

Color values

HEX	#511A8E
RGB	rgb(81, 26, 142)
HSL	hsl(268, 69%, 33%)
HSV	hsv(268, 82%, 56%)
CMYK	cmyk(43%, 81.7%, 0%, 44.3%)
CIE-LAB	lab(25.08, 47.79, -53.23)
CIE-LCH	lch(25.08, 71.54, 311.91°)
OKLab	oklab(37.6% 0.0842 -0.1524)
OKLCH	oklch(37.6% 0.174 298.9)
XYZ	xyz(8.6440, 4.4410, 25.9877)
Luminance	0.0444 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511A8E #578E1A

analogous

#1A1D8E #511A8E #8B1A8E

triadic

#511A8E #8E511A #1A8E51

tetradic

#511A8E #8E1A1D #578E1A #1A8E8B

square

#511A8E #8E1A1D #578E1A #1A8E8B

split-complementary

#511A8E #8E8B1A #1D8E1A

monochromatic

#160727 #33115A #511A8E #6F23C2 #8D45DD

Accessibility & contrast

On white

11.12

#511A8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#511A8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511A8E

11.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511A8E	#FFFFFF	#000000	##FFFFFF
##511A8E	1.00	11.12	1.89	11.12
#FFFFFF	11.12	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B91

Deuteranopia (green-blind)

#003A8C

Tritanopia (blue-blind)

#423B54

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #511a8e;
/* rgb */ color: rgb(81, 26, 142);
/* oklch */ color: oklch(37.6% 0.174 298.9);

Tailwind

colors: {
  custom: {
    50: '#885eb0',
    500: '#511a8e',
    950: '#000000',
  },
}

SCSS

$custom: #511a8e;
$custom-light: #885eb0;
$custom-dark: #000000;

JSON

{
  "hex": "#511a8e",
  "rgb": {
    "r": 81,
    "g": 26,
    "b": 142
  },
  "hsl": {
    "h": 268.448,
    "s": 69.048,
    "l": 32.941
  },
  "oklch": {
    "l": 0.37601,
    "c": 0.17408,
    "h": 298.9
  },
  "luminance": 0.04441
}

Semantic roles & 50–950 ramp

primary

#511A8E

secondary

#85BE45

accent

#EC3C98

background

#F8F5FB

surface

#F0E9F6

border

#CBC5D0

text

#0C0511

muted

#7D7980

Preview Lab

Preview with #511A8E

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

Preview Lab → · Contrast checker → · Palette generator →