#511A7E#511A7E

#511A7E is a dark, vivid violet. Relative luminance 0.040; OKLCH L 36.2% C 0.157 H 304.4°. Best body text is #FFFFFF at 11.67:1 contrast (WCAG AA passes).

Color values

HEX	#511A7E
RGB	rgb(81, 26, 126)
HSL	hsl(273, 66%, 30%)
HSV	hsv(273, 79%, 49%)
CMYK	cmyk(35.7%, 79.4%, 0%, 50.6%)
CIE-LAB	lab(23.65, 43.80, -45.53)
CIE-LCH	lch(23.65, 63.18, 313.89°)
OKLab	oklab(36.17% 0.0888 -0.1297)
OKLCH	oklch(36.17% 0.157 304.4)
XYZ	xyz(7.5278, 3.9945, 20.1091)
Luminance	0.0399 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Indigo

#4B0082

ΔE00 3.51

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511A7E #477E1A

analogous

#1F1A7E #511A7E #7E1A79

triadic

#511A7E #7E511A #1A7E51

tetradic

#511A7E #7E1F1A #477E1A #1A797E

square

#511A7E #7E1F1A #477E1A #1A797E

split-complementary

#511A7E #797E1A #1A7E1F

monochromatic

#100519 #30104B #511A7E #7224B1 #913CD7

Accessibility & contrast

On white

11.67

#511A7E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#511A7E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511A7E

11.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511A7E	#FFFFFF	#000000	##FFFFFF
##511A7E	1.00	11.67	1.80	11.67
#FFFFFF	11.67	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003781

Deuteranopia (green-blind)

#00387C

Tritanopia (blue-blind)

#48344B

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #511a7e;
/* rgb */ color: rgb(81, 26, 126);
/* oklch */ color: oklch(36.2% 0.157 304.4);

Tailwind

colors: {
  custom: {
    50: '#875da4',
    500: '#511a7e',
    950: '#000000',
  },
}

SCSS

$custom: #511a7e;
$custom-light: #875da4;
$custom-dark: #000000;

JSON

{
  "hex": "#511a7e",
  "rgb": {
    "r": 81,
    "g": 26,
    "b": 126
  },
  "hsl": {
    "h": 273,
    "s": 65.789,
    "l": 29.804
  },
  "oklch": {
    "l": 0.36166,
    "c": 0.15723,
    "h": 304.4
  },
  "luminance": 0.03994
}

Semantic roles & 50–950 ramp

primary

#511A7E

secondary

#74B242

accent

#E93F8B

background

#F8F5FA

surface

#F0E9F4

border

#CBC5CE

text

#0C050F

muted

#7D797F

Preview Lab

Preview with #511A7E

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

Preview Lab → · Contrast checker → · Palette generator →