#311D83#311D83

#311D83 is a dark, vivid violet. Relative luminance 0.032; OKLCH L 33.4% C 0.159 H 282.6°. Best body text is #FFFFFF at 12.85:1 contrast (WCAG AA passes).

Color values

HEX	#311D83
RGB	rgb(49, 29, 131)
HSL	hsl(252, 64%, 31%)
HSV	hsv(252, 78%, 51%)
CMYK	cmyk(62.6%, 77.9%, 0%, 48.6%)
CIE-LAB	lab(20.71, 38.62, -53.66)
CIE-LCH	lch(20.71, 66.11, 305.74°)
OKLab	oklab(33.36% 0.0345 -0.1547)
OKLCH	oklch(33.36% 0.159 282.6)
XYZ	xyz(5.8014, 3.1700, 21.7745)
Luminance	0.0317 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311D83 #6F831D

analogous

#1D3C83 #311D83 #641D83

triadic

#311D83 #83311D #1D8331

tetradic

#311D83 #831D3C #6F831D #1D8364

square

#311D83 #831D3C #6F831D #1D8364

split-complementary

#311D83 #83641D #3C831D

monochromatic

#0C071F #1E1251 #311D83 #4428B5 #6145D6

Accessibility & contrast

On white

12.85

#311D83 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.63

#311D83 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311D83

12.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311D83	#FFFFFF	#000000	##FFFFFF
##311D83	1.00	12.85	1.63	12.85
#FFFFFF	12.85	1.00	21.00	1.00
#000000	1.63	21.00	1.00	21.00
##FFFFFF	12.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003586

Deuteranopia (green-blind)

#002E81

Tritanopia (blue-blind)

#003A4F

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #311d83;
/* rgb */ color: rgb(49, 29, 131);
/* oklch */ color: oklch(33.4% 0.159 282.6);

Tailwind

colors: {
  custom: {
    50: '#745ca8',
    500: '#311d83',
    950: '#000000',
  },
}

SCSS

$custom: #311d83;
$custom-light: #745ca8;
$custom-dark: #000000;

JSON

{
  "hex": "#311d83",
  "rgb": {
    "r": 49,
    "g": 29,
    "b": 131
  },
  "hsl": {
    "h": 251.765,
    "s": 63.75,
    "l": 31.373
  },
  "oklch": {
    "l": 0.3336,
    "c": 0.15852,
    "h": 282.6
  },
  "luminance": 0.0317
}

Semantic roles & 50–950 ramp

primary

#311D83

secondary

#A0B646

accent

#E741C6

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090410

muted

#7B797F

Preview Lab

Preview with #311D83

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

Preview Lab → · Contrast checker → · Palette generator →