#511F90#511F90

#511F90 is a dark, vivid violet. Relative luminance 0.047; OKLCH L 38.3% C 0.171 H 297.7°. Best body text is #FFFFFF at 10.78:1 contrast (WCAG AA passes).

Color values

HEX	#511F90
RGB	rgb(81, 31, 144)
HSL	hsl(267, 65%, 34%)
HSV	hsv(267, 78%, 56%)
CMYK	cmyk(43.8%, 78.5%, 0%, 43.5%)
CIE-LAB	lab(25.99, 46.20, -52.98)
CIE-LCH	lch(25.99, 70.30, 311.09°)
OKLab	oklab(38.29% 0.0795 -0.1517)
OKLCH	oklch(38.29% 0.171 297.7)
XYZ	xyz(8.9161, 4.7428, 26.8258)
Luminance	0.0474 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511F90 #5E901F

analogous

#1F2690 #511F90 #8A1F90

triadic

#511F90 #90511F #1F9051

tetradic

#511F90 #901F26 #5E901F #1F908A

square

#511F90 #901F26 #5E901F #1F908A

split-complementary

#511F90 #908A1F #26901F

monochromatic

#18092B #35145E #511F90 #6D2AC2 #8D50D9

Accessibility & contrast

On white

10.78

#511F90 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#511F90 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511F90

10.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511F90	#FFFFFF	#000000	##FFFFFF
##511F90	1.00	10.78	1.95	10.78
#FFFFFF	10.78	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E93

Deuteranopia (green-blind)

#003C8E

Tritanopia (blue-blind)

#413E57

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #511f90;
/* rgb */ color: rgb(81, 31, 144);
/* oklch */ color: oklch(38.3% 0.171 297.7);

Tailwind

colors: {
  custom: {
    50: '#8861b1',
    500: '#511f90',
    950: '#000000',
  },
}

SCSS

$custom: #511f90;
$custom-light: #8861b1;
$custom-dark: #000000;

JSON

{
  "hex": "#511f90",
  "rgb": {
    "r": 81,
    "g": 31,
    "b": 144
  },
  "hsl": {
    "h": 266.549,
    "s": 64.571,
    "l": 34.314
  },
  "oklch": {
    "l": 0.38292,
    "c": 0.17124,
    "h": 297.7
  },
  "luminance": 0.04743
}

Semantic roles & 50–950 ramp

primary

#511F90

secondary

#8CBC4E

accent

#E8409E

background

#F8F5FB

surface

#F0EAF6

border

#CBC6D0

text

#0C0511

muted

#7D7980

Preview Lab

Preview with #511F90

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

Preview Lab → · Contrast checker → · Palette generator →