#511A7B#511A7B

#511A7B is a dark, vivid violet. Relative luminance 0.039; OKLCH L 35.9% C 0.154 H 305.6°. Best body text is #FFFFFF at 11.77:1 contrast (WCAG AA passes).

Color values

HEX	#511A7B
RGB	rgb(81, 26, 123)
HSL	hsl(274, 65%, 29%)
HSV	hsv(274, 79%, 48%)
CMYK	cmyk(34.1%, 78.9%, 0%, 51.8%)
CIE-LAB	lab(23.40, 43.07, -44.04)
CIE-LCH	lch(23.40, 61.60, 314.36°)
OKLab	oklab(35.91% 0.0896 -0.1253)
OKLCH	oklch(35.91% 0.154 305.6)
XYZ	xyz(7.3371, 3.9182, 19.1048)
Luminance	0.0392 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Indigo

#4B0082

ΔE00 3.76

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511A7B #447B1A

analogous

#211A7B #511A7B #7B1A75

triadic

#511A7B #7B511A #1A7B51

tetradic

#511A7B #7B211A #447B1A #1A757B

square

#511A7B #7B211A #447B1A #1A757B

split-complementary

#511A7B #757B1A #1A7B21

monochromatic

#110519 #300F48 #511A7B #7225AE #923AD5

Accessibility & contrast

On white

11.77

#511A7B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#511A7B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511A7B

11.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511A7B	#FFFFFF	#000000	##FFFFFF
##511A7B	1.00	11.77	1.78	11.77
#FFFFFF	11.77	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00367E

Deuteranopia (green-blind)

#003879

Tritanopia (blue-blind)

#49324A

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #511a7b;
/* rgb */ color: rgb(81, 26, 123);
/* oklch */ color: oklch(35.9% 0.154 305.6);

Tailwind

colors: {
  custom: {
    50: '#865da2',
    500: '#511a7b',
    950: '#000000',
  },
}

SCSS

$custom: #511a7b;
$custom-light: #865da2;
$custom-dark: #000000;

JSON

{
  "hex": "#511a7b",
  "rgb": {
    "r": 81,
    "g": 26,
    "b": 123
  },
  "hsl": {
    "h": 274.021,
    "s": 65.101,
    "l": 29.216
  },
  "oklch": {
    "l": 0.35908,
    "c": 0.15407,
    "h": 305.6
  },
  "luminance": 0.03918
}

Semantic roles & 50–950 ramp

primary

#511A7B

secondary

#71AF42

accent

#E84089

background

#F8F5FA

surface

#F0E9F4

border

#CBC5CE

text

#0C040F

muted

#7D797F

Preview Lab

Preview with #511A7B

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

Preview Lab → · Contrast checker → · Palette generator →