#311C82#311C82

#311C82 is a dark, vivid violet. Relative luminance 0.031; OKLCH L 33.1% C 0.158 H 283.0°. Best body text is #FFFFFF at 12.97:1 contrast (WCAG AA passes).

Color values

HEX	#311C82
RGB	rgb(49, 28, 130)
HSL	hsl(252, 65%, 31%)
HSV	hsv(252, 78%, 51%)
CMYK	cmyk(62.3%, 78.5%, 0%, 49%)
CIE-LAB	lab(20.42, 38.84, -53.51)
CIE-LCH	lch(20.42, 66.12, 305.98°)
OKLab	oklab(33.12% 0.0355 -0.1543)
OKLCH	oklch(33.12% 0.158 283)
XYZ	xyz(5.7099, 3.0948, 21.4112)
Luminance	0.0309 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311C82 #6D821C

analogous

#1C3A82 #311C82 #641C82

triadic

#311C82 #82311C #1C8231

tetradic

#311C82 #821C3A #6D821C #1C8264

square

#311C82 #821C3A #6D821C #1C8264

split-complementary

#311C82 #82641C #3A821C

monochromatic

#0B061D #1E1150 #311C82 #4427B4 #6142D6

Accessibility & contrast

On white

12.97

#311C82 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.62

#311C82 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311C82

12.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311C82	#FFFFFF	#000000	##FFFFFF
##311C82	1.00	12.97	1.62	12.97
#FFFFFF	12.97	1.00	21.00	1.00
#000000	1.62	21.00	1.00	21.00
##FFFFFF	12.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003485

Deuteranopia (green-blind)

#002E80

Tritanopia (blue-blind)

#00394E

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #311c82;
/* rgb */ color: rgb(49, 28, 130);
/* oklch */ color: oklch(33.1% 0.158 283.0);

Tailwind

colors: {
  custom: {
    50: '#745ba7',
    500: '#311c82',
    950: '#000000',
  },
}

SCSS

$custom: #311c82;
$custom-light: #745ba7;
$custom-dark: #000000;

JSON

{
  "hex": "#311c82",
  "rgb": {
    "r": 49,
    "g": 28,
    "b": 130
  },
  "hsl": {
    "h": 252.353,
    "s": 64.557,
    "l": 30.98
  },
  "oklch": {
    "l": 0.33123,
    "c": 0.15831,
    "h": 283
  },
  "luminance": 0.03095
}

Semantic roles & 50–950 ramp

primary

#311C82

secondary

#9EB544

accent

#E840C5

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090410

muted

#7B797F

Preview Lab

Preview with #311C82

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

Preview Lab → · Contrast checker → · Palette generator →