#511B70#511B70

#511B70 is a dark, vivid violet. Relative luminance 0.037; OKLCH L 35.1% C 0.141 H 310.0°. Best body text is #FFFFFF at 12.06:1 contrast (WCAG AA passes).

Color values

HEX	#511B70
RGB	rgb(81, 27, 112)
HSL	hsl(278, 61%, 27%)
HSV	hsv(278, 76%, 44%)
CMYK	cmyk(27.7%, 75.9%, 0%, 56.1%)
CIE-LAB	lab(22.66, 39.98, -38.18)
CIE-LCH	lch(22.66, 55.29, 316.32°)
OKLab	oklab(35.11% 0.0908 -0.1081)
OKLCH	oklch(35.11% 0.141 310)
XYZ	xyz(6.7093, 3.7032, 15.6874)
Luminance	0.0370 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511B70 #3A701B

analogous

#271B70 #511B70 #701B64

triadic

#511B70 #70511B #1B7051

tetradic

#511B70 #70271B #3A701B #1B6470

square

#511B70 #70271B #3A701B #1B6470

split-complementary

#511B70 #64701B #1B7027

monochromatic

#120619 #2D0F3F #511B70 #7527A1 #9737CF

Accessibility & contrast

On white

12.06

#511B70 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#511B70 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511B70

12.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511B70	#FFFFFF	#000000	##FFFFFF
##511B70	1.00	12.06	1.74	12.06
#FFFFFF	12.06	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003472

Deuteranopia (green-blind)

#09376E

Tritanopia (blue-blind)

#4D2E44

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #511b70;
/* rgb */ color: rgb(81, 27, 112);
/* oklch */ color: oklch(35.1% 0.141 310.0);

Tailwind

colors: {
  custom: {
    50: '#855d9a',
    500: '#511b70',
    950: '#000000',
  },
}

SCSS

$custom: #511b70;
$custom-light: #855d9a;
$custom-dark: #000000;

JSON

{
  "hex": "#511b70",
  "rgb": {
    "r": 81,
    "g": 27,
    "b": 112
  },
  "hsl": {
    "h": 278.118,
    "s": 61.151,
    "l": 27.255
  },
  "oklch": {
    "l": 0.3511,
    "c": 0.14121,
    "h": 310
  },
  "luminance": 0.03703
}

Semantic roles & 50–950 ramp

primary

#511B70

secondary

#66A542

accent

#E4447E

background

#F8F5F9

surface

#F0E9F2

border

#CBC5CC

text

#0B040E

muted

#7C797E

Preview Lab

Preview with #511B70

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

Preview Lab → · Contrast checker → · Palette generator →