#511F9F#511F9F

#511F9F is a dark, vivid violet. Relative luminance 0.052; OKLCH L 39.7% C 0.188 H 293.6°. Best body text is #FFFFFF at 10.26:1 contrast (WCAG AA passes).

Color values

HEX	#511F9F
RGB	rgb(81, 31, 159)
HSL	hsl(263, 67%, 37%)
HSV	hsv(263, 81%, 62%)
CMYK	cmyk(49.1%, 80.5%, 0%, 37.6%)
CIE-LAB	lab(27.39, 50.13, -59.90)
CIE-LCH	lch(27.39, 78.11, 309.92°)
OKLab	oklab(39.69% 0.075 -0.1719)
OKLCH	oklch(39.69% 0.188 293.6)
XYZ	xyz(10.1396, 5.2322, 33.2698)
Luminance	0.0523 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511F9F #6D9F1F

analogous

#1F2D9F #511F9F #911F9F

triadic

#511F9F #9F511F #1F9F51

tetradic

#511F9F #9F1F2D #6D9F1F #1F9F91

square

#511F9F #9F1F2D #6D9F1F #1F9F91

split-complementary

#511F9F #9F911F #2D9F1F

monochromatic

#1D0B39 #37156C #511F9F #6B29D2 #8E5ADF

Accessibility & contrast

On white

10.26

#511F9F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#511F9F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511F9F

10.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511F9F	#FFFFFF	#000000	##FFFFFF
##511F9F	1.00	10.26	2.05	10.26
#FFFFFF	10.26	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0042A2

Deuteranopia (green-blind)

#003E9D

Tritanopia (blue-blind)

#39445F

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #511f9f;
/* rgb */ color: rgb(81, 31, 159);
/* oklch */ color: oklch(39.7% 0.188 293.6);

Tailwind

colors: {
  custom: {
    50: '#8a62bc',
    500: '#511f9f',
    950: '#000000',
  },
}

SCSS

$custom: #511f9f;
$custom-light: #8a62bc;
$custom-dark: #000000;

JSON

{
  "hex": "#511f9f",
  "rgb": {
    "r": 81,
    "g": 31,
    "b": 159
  },
  "hsl": {
    "h": 263.438,
    "s": 67.368,
    "l": 37.255
  },
  "oklch": {
    "l": 0.39693,
    "c": 0.18757,
    "h": 293.6
  },
  "luminance": 0.05233
}

Semantic roles & 50–950 ramp

primary

#511F9F

secondary

#99C357

accent

#EA3EA7

background

#F9F6FB

surface

#F1EBF7

border

#CBC6D0

text

#0D0512

muted

#7E7A81

Preview Lab

Preview with #511F9F

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

Preview Lab → · Contrast checker → · Palette generator →