#511BBB#511BBB

#511BBB is a dark, highly saturated violet. Relative luminance 0.061; OKLCH L 42.1% C 0.220 H 287.8°. Best body text is #FFFFFF at 9.44:1 contrast (WCAG AA passes).

Color values

HEX	#511BBB
RGB	rgb(81, 27, 187)
HSL	hsl(260, 75%, 42%)
HSV	hsv(260, 86%, 73%)
CMYK	cmyk(56.7%, 85.6%, 0%, 26.7%)
CIE-LAB	lab(29.71, 58.92, -72.88)
CIE-LCH	lch(29.71, 93.72, 308.96°)
OKLab	oklab(42.15% 0.0672 -0.2098)
OKLCH	oklch(42.15% 0.22 287.8)
XYZ	xyz(12.7522, 6.1204, 47.5135)
Luminance	0.0612 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511BBB #85BB1B

analogous

#1B35BB #511BBB #A11BBB

triadic

#511BBB #BB511B #1BBB51

tetradic

#511BBB #BB1B35 #85BB1B #1BBBA1

square

#511BBB #BB1B35 #85BB1B #1BBBA1

split-complementary

#511BBB #BBA11B #35BB1B

monochromatic

#230C50 #3A1386 #511BBB #6D32E1 #9367E9

Accessibility & contrast

On white

9.44

#511BBB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.22

#511BBB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511BBB

9.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511BBB	#FFFFFF	#000000	##FFFFFF
##511BBB	1.00	9.44	2.22	9.44
#FFFFFF	9.44	1.00	21.00	1.00
#000000	2.22	21.00	1.00	21.00
##FFFFFF	9.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049BF

Deuteranopia (green-blind)

#0042B8

Tritanopia (blue-blind)

#1F4E6F

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #511bbb;
/* rgb */ color: rgb(81, 27, 187);
/* oklch */ color: oklch(42.1% 0.220 287.8);

Tailwind

colors: {
  custom: {
    50: '#8f62d1',
    500: '#511bbb',
    950: '#000000',
  },
}

SCSS

$custom: #511bbb;
$custom-light: #8f62d1;
$custom-dark: #000000;

JSON

{
  "hex": "#511bbb",
  "rgb": {
    "r": 81,
    "g": 27,
    "b": 187
  },
  "hsl": {
    "h": 260.25,
    "s": 74.766,
    "l": 41.961
  },
  "oklch": {
    "l": 0.42145,
    "c": 0.22033,
    "h": 287.8
  },
  "luminance": 0.06121
}

Semantic roles & 50–950 ramp

primary

#511BBB

secondary

#AACE63

accent

#F136B2

background

#F9F6FD

surface

#F2EBFA

border

#CCC6D3

text

#0E0614

muted

#7E7A83

Preview Lab

Preview with #511BBB

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

Preview Lab → · Contrast checker → · Palette generator →