#511F7B#511F7B

#511F7B is a dark, vivid violet. Relative luminance 0.042; OKLCH L 36.5% C 0.148 H 304.8°. Best body text is #FFFFFF at 11.46:1 contrast (WCAG AA passes).

Color values

HEX	#511F7B
RGB	rgb(81, 31, 123)
HSL	hsl(273, 60%, 30%)
HSV	hsv(273, 75%, 48%)
CMYK	cmyk(34.1%, 74.8%, 0%, 51.8%)
CIE-LAB	lab(24.19, 40.82, -42.75)
CIE-LCH	lch(24.19, 59.11, 313.67°)
OKLab	oklab(36.47% 0.0846 -0.1216)
OKLCH	oklch(36.47% 0.148 304.8)
XYZ	xyz(7.4577, 4.1594, 19.1450)
Luminance	0.0416 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Indigo

#4B0082

ΔE00 4.60

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511F7B #497B1F

analogous

#231F7B #511F7B #7B1F77

triadic

#511F7B #7B511F #1F7B51

tetradic

#511F7B #7B231F #497B1F #1F777B

square

#511F7B #7B231F #497B1F #1F777B

split-complementary

#511F7B #777B1F #1F7B23

monochromatic

#110619 #31134A #511F7B #712BAC #9044D0

Accessibility & contrast

On white

11.46

#511F7B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#511F7B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511F7B

11.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511F7B	#FFFFFF	#000000	##FFFFFF
##511F7B	1.00	11.46	1.83	11.46
#FFFFFF	11.46	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00387E

Deuteranopia (green-blind)

#003A79

Tritanopia (blue-blind)

#49354B

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #511f7b;
/* rgb */ color: rgb(81, 31, 123);
/* oklch */ color: oklch(36.5% 0.148 304.8);

Tailwind

colors: {
  custom: {
    50: '#8660a2',
    500: '#511f7b',
    950: '#000000',
  },
}

SCSS

$custom: #511f7b;
$custom-light: #8660a2;
$custom-dark: #000000;

JSON

{
  "hex": "#511f7b",
  "rgb": {
    "r": 81,
    "g": 31,
    "b": 123
  },
  "hsl": {
    "h": 272.609,
    "s": 59.74,
    "l": 30.196
  },
  "oklch": {
    "l": 0.36467,
    "c": 0.1481,
    "h": 304.8
  },
  "luminance": 0.04159
}

Semantic roles & 50–950 ramp

primary

#511F7B

secondary

#76AE48

accent

#E3458D

background

#F8F5FA

surface

#F0EAF3

border

#CBC6CD

text

#0C050F

muted

#7D797F

Preview Lab

Preview with #511F7B

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

Preview Lab → · Contrast checker → · Palette generator →