#311C84#311C84

#311C84 is a dark, vivid violet. Relative luminance 0.031; OKLCH L 33.3% C 0.161 H 282.5°. Best body text is #FFFFFF at 12.89:1 contrast (WCAG AA passes).

Color values

HEX	#311C84
RGB	rgb(49, 28, 132)
HSL	hsl(252, 65%, 31%)
HSV	hsv(252, 79%, 52%)
CMYK	cmyk(62.9%, 78.8%, 0%, 48.2%)
CIE-LAB	lab(20.63, 39.47, -54.42)
CIE-LCH	lch(20.63, 67.23, 305.95°)
OKLab	oklab(33.34% 0.0349 -0.1569)
OKLCH	oklch(33.34% 0.161 282.5)
XYZ	xyz(5.8454, 3.1490, 22.1251)
Luminance	0.0315 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311C84 #6F841C

analogous

#1C3B84 #311C84 #651C84

triadic

#311C84 #84311C #1C8431

tetradic

#311C84 #841C3B #6F841C #1C8465

square

#311C84 #841C3B #6F841C #1C8465

split-complementary

#311C84 #84651C #3B841C

monochromatic

#0C071F #1E1152 #311C84 #4427B6 #6143D7

Accessibility & contrast

On white

12.89

#311C84 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.63

#311C84 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311C84

12.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311C84	#FFFFFF	#000000	##FFFFFF
##311C84	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)

#003587

Deuteranopia (green-blind)

#002E82

Tritanopia (blue-blind)

#003A4F

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #311c84;
/* rgb */ color: rgb(49, 28, 132);
/* oklch */ color: oklch(33.3% 0.161 282.5);

Tailwind

colors: {
  custom: {
    50: '#755ba9',
    500: '#311c84',
    950: '#000000',
  },
}

SCSS

$custom: #311c84;
$custom-light: #755ba9;
$custom-dark: #000000;

JSON

{
  "hex": "#311c84",
  "rgb": {
    "r": 49,
    "g": 28,
    "b": 132
  },
  "hsl": {
    "h": 252.115,
    "s": 65,
    "l": 31.373
  },
  "oklch": {
    "l": 0.33335,
    "c": 0.16078,
    "h": 282.5
  },
  "luminance": 0.03149
}

Semantic roles & 50–950 ramp

primary

#311C84

secondary

#A0B745

accent

#E840C6

background

#F7F5FA

surface

#EEE9F4

border

#C9C5CE

text

#090410

muted

#7B797F

Preview Lab

Preview with #311C84

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

Preview Lab → · Contrast checker → · Palette generator →