#311D82#311D82

#311D82 is a dark, vivid violet. Relative luminance 0.031; OKLCH L 33.3% C 0.157 H 282.8°. Best body text is #FFFFFF at 12.89:1 contrast (WCAG AA passes).

Color values

HEX	#311D82
RGB	rgb(49, 29, 130)
HSL	hsl(252, 64%, 31%)
HSV	hsv(252, 78%, 51%)
CMYK	cmyk(62.3%, 77.7%, 0%, 49%)
CIE-LAB	lab(20.61, 38.31, -53.20)
CIE-LCH	lch(20.61, 65.56, 305.76°)
OKLab	oklab(33.26% 0.0348 -0.1534)
OKLCH	oklch(33.26% 0.157 282.8)
XYZ	xyz(5.7340, 3.1430, 21.4193)
Luminance	0.0314 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311D82 #6E821D

analogous

#1D3B82 #311D82 #631D82

triadic

#311D82 #82311D #1D8231

tetradic

#311D82 #821D3B #6E821D #1D8263

square

#311D82 #821D3B #6E821D #1D8263

split-complementary

#311D82 #82631D #3B821D

monochromatic

#0B071E #1E1250 #311D82 #4428B4 #6144D5

Accessibility & contrast

On white

12.89

#311D82 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.63

#311D82 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311D82

12.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311D82	#FFFFFF	#000000	##FFFFFF
##311D82	1.00	12.89	1.63	12.89
#FFFFFF	12.89	1.00	21.00	1.00
#000000	1.63	21.00	1.00	21.00
##FFFFFF	12.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003585

Deuteranopia (green-blind)

#002E80

Tritanopia (blue-blind)

#003A4E

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #311d82;
/* rgb */ color: rgb(49, 29, 130);
/* oklch */ color: oklch(33.3% 0.157 282.8);

Tailwind

colors: {
  custom: {
    50: '#745ca7',
    500: '#311d82',
    950: '#000000',
  },
}

SCSS

$custom: #311d82;
$custom-light: #745ca7;
$custom-dark: #000000;

JSON

{
  "hex": "#311d82",
  "rgb": {
    "r": 49,
    "g": 29,
    "b": 130
  },
  "hsl": {
    "h": 251.881,
    "s": 63.522,
    "l": 31.176
  },
  "oklch": {
    "l": 0.33255,
    "c": 0.15728,
    "h": 282.8
  },
  "luminance": 0.03143
}

Semantic roles & 50–950 ramp

primary

#311D82

secondary

#9FB546

accent

#E741C6

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090410

muted

#7B797F

Preview Lab

Preview with #311D82

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

Preview Lab → · Contrast checker → · Palette generator →