#511FAB#511FAB

#511FAB is a dark, highly saturated violet. Relative luminance 0.057; OKLCH L 40.9% C 0.201 H 290.7°. Best body text is #FFFFFF at 9.84:1 contrast (WCAG AA passes).

Color values

HEX	#511FAB
RGB	rgb(81, 31, 171)
HSL	hsl(261, 69%, 40%)
HSV	hsv(261, 82%, 67%)
CMYK	cmyk(52.6%, 81.9%, 0%, 32.9%)
CIE-LAB	lab(28.56, 53.29, -65.23)
CIE-LCH	lch(28.56, 84.23, 309.24°)
OKLab	oklab(40.86% 0.0709 -0.1875)
OKLCH	oklch(40.86% 0.201 290.7)
XYZ	xyz(11.2319, 5.6691, 39.0226)
Luminance	0.0567 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#511FAB #79AB1F

analogous

#1F33AB #511FAB #971FAB

triadic

#511FAB #AB511F #1FAB51

tetradic

#511FAB #AB1F33 #79AB1F #1FAB97

square

#511FAB #AB1F33 #79AB1F #1FAB97

split-complementary

#511FAB #AB971F #33AB1F

monochromatic

#200C43 #381677 #511FAB #6B2ED9 #9062E3

Accessibility & contrast

On white

9.84

#511FAB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#511FAB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #511FAB

9.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##511FAB	#FFFFFF	#000000	##FFFFFF
##511FAB	1.00	9.84	2.13	9.84
#FFFFFF	9.84	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0046AF

Deuteranopia (green-blind)

#0040A9

Tritanopia (blue-blind)

#304966

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #511fab;
/* rgb */ color: rgb(81, 31, 171);
/* oklch */ color: oklch(40.9% 0.201 290.7);

Tailwind

colors: {
  custom: {
    50: '#8c62c5',
    500: '#511fab',
    950: '#000000',
  },
}

SCSS

$custom: #511fab;
$custom-light: #8c62c5;
$custom-dark: #000000;

JSON

{
  "hex": "#511fab",
  "rgb": {
    "r": 81,
    "g": 31,
    "b": 171
  },
  "hsl": {
    "h": 261.429,
    "s": 69.307,
    "l": 39.608
  },
  "oklch": {
    "l": 0.40862,
    "c": 0.2005,
    "h": 290.7
  },
  "luminance": 0.0567
}

Semantic roles & 50–950 ramp

primary

#511FAB

secondary

#A2C75E

accent

#EC3CAD

background

#F9F6FC

surface

#F1EBF8

border

#CBC6D1

text

#0D0613

muted

#7E7A82

Preview Lab

Preview with #511FAB

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

Preview Lab → · Contrast checker → · Palette generator →