#311C83#311C83

#311C83 is a dark, vivid violet. Relative luminance 0.031; OKLCH L 33.2% C 0.160 H 282.8°. Best body text is #FFFFFF at 12.93:1 contrast (WCAG AA passes).

Color values

HEX	#311C83
RGB	rgb(49, 28, 131)
HSL	hsl(252, 65%, 31%)
HSV	hsv(252, 79%, 51%)
CMYK	cmyk(62.6%, 78.6%, 0%, 48.6%)
CIE-LAB	lab(20.53, 39.16, -53.97)
CIE-LCH	lch(20.53, 66.68, 305.96°)
OKLab	oklab(33.23% 0.0352 -0.1556)
OKLCH	oklch(33.23% 0.16 282.8)
XYZ	xyz(5.7773, 3.1218, 21.7664)
Luminance	0.0312 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311C83 #6E831C

analogous

#1C3A83 #311C83 #641C83

triadic

#311C83 #83311C #1C8331

tetradic

#311C83 #831C3A #6E831C #1C8364

square

#311C83 #831C3A #6E831C #1C8364

split-complementary

#311C83 #83641C #3A831C

monochromatic

#0B061E #1E1151 #311C83 #4427B5 #6143D7

Accessibility & contrast

On white

12.93

#311C83 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.62

#311C83 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311C83

12.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311C83	#FFFFFF	#000000	##FFFFFF
##311C83	1.00	12.93	1.62	12.93
#FFFFFF	12.93	1.00	21.00	1.00
#000000	1.62	21.00	1.00	21.00
##FFFFFF	12.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003586

Deuteranopia (green-blind)

#002E81

Tritanopia (blue-blind)

#003A4E

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #311c83;
/* rgb */ color: rgb(49, 28, 131);
/* oklch */ color: oklch(33.2% 0.160 282.8);

Tailwind

colors: {
  custom: {
    50: '#745ba8',
    500: '#311c83',
    950: '#000000',
  },
}

SCSS

$custom: #311c83;
$custom-light: #745ba8;
$custom-dark: #000000;

JSON

{
  "hex": "#311c83",
  "rgb": {
    "r": 49,
    "g": 28,
    "b": 131
  },
  "hsl": {
    "h": 252.233,
    "s": 64.78,
    "l": 31.176
  },
  "oklch": {
    "l": 0.33229,
    "c": 0.15955,
    "h": 282.8
  },
  "luminance": 0.03122
}

Semantic roles & 50–950 ramp

primary

#311C83

secondary

#9FB645

accent

#E840C6

background

#F7F5FA

surface

#EEE9F4

border

#C9C5CE

text

#090410

muted

#7B797F

Preview Lab

Preview with #311C83

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

Preview Lab → · Contrast checker → · Palette generator →