#311583#311583

#311583 is a dark, vivid violet. Relative luminance 0.028; OKLCH L 32.4% C 0.166 H 283.8°. Best body text is #FFFFFF at 13.41:1 contrast (WCAG AA passes).

Color values

HEX	#311583
RGB	rgb(49, 21, 131)
HSL	hsl(255, 72%, 30%)
HSV	hsv(255, 84%, 51%)
CMYK	cmyk(62.6%, 84%, 0%, 48.6%)
CIE-LAB	lab(19.34, 42.58, -55.92)
CIE-LCH	lch(19.34, 70.29, 307.29°)
OKLab	oklab(32.4% 0.0396 -0.1612)
OKLCH	oklch(32.4% 0.166 283.8)
XYZ	xyz(5.6303, 2.8276, 21.7174)
Luminance	0.0283 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311583 #678315

analogous

#153083 #311583 #681583

triadic

#311583 #833115 #158331

tetradic

#311583 #831530 #678315 #158368

square

#311583 #831530 #678315 #158368

split-complementary

#311583 #836815 #308315

monochromatic

#0A041A #1D0D4E #311583 #451DB8 #5F34DE

Accessibility & contrast

On white

13.41

#311583 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#311583 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311583

13.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311583	#FFFFFF	#000000	##FFFFFF
##311583	1.00	13.41	1.57	13.41
#FFFFFF	13.41	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003286

Deuteranopia (green-blind)

#002B81

Tritanopia (blue-blind)

#00374D

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #311583;
/* rgb */ color: rgb(49, 21, 131);
/* oklch */ color: oklch(32.4% 0.166 283.8);

Tailwind

colors: {
  custom: {
    50: '#7558a8',
    500: '#311583',
    950: '#000000',
  },
}

SCSS

$custom: #311583;
$custom-light: #7558a8;
$custom-dark: #000000;

JSON

{
  "hex": "#311583",
  "rgb": {
    "r": 49,
    "g": 21,
    "b": 131
  },
  "hsl": {
    "h": 255.273,
    "s": 72.368,
    "l": 29.804
  },
  "oklch": {
    "l": 0.32404,
    "c": 0.16603,
    "h": 283.8
  },
  "luminance": 0.02828
}

Semantic roles & 50–950 ramp

primary

#311583

secondary

#98B83C

accent

#EF39C1

background

#F7F5FA

surface

#EEE9F4

border

#C9C5CE

text

#090310

muted

#7B787F

Preview Lab

Preview with #311583

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

Preview Lab → · Contrast checker → · Palette generator →