#311E81#311E81

#311E81 is a dark, vivid violet. Relative luminance 0.032; OKLCH L 33.3% C 0.155 H 282.8°. Best body text is #FFFFFF at 12.86:1 contrast (WCAG AA passes).

Color values

HEX	#311E81
RGB	rgb(49, 30, 129)
HSL	hsl(252, 62%, 31%)
HSV	hsv(252, 77%, 51%)
CMYK	cmyk(62%, 76.7%, 0%, 49.4%)
CIE-LAB	lab(20.70, 37.44, -52.42)
CIE-LCH	lch(20.70, 64.42, 305.54°)
OKLab	oklab(33.29% 0.0343 -0.1511)
OKLCH	oklch(33.29% 0.155 282.8)
XYZ	xyz(5.6921, 3.1661, 21.0758)
Luminance	0.0317 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311E81 #6E811E

analogous

#1E3C81 #311E81 #621E81

triadic

#311E81 #81311E #1E8131

tetradic

#311E81 #811E3C #6E811E #1E8162

square

#311E81 #811E3C #6E811E #1E8162

split-complementary

#311E81 #81621E #3C811E

monochromatic

#0B071E #1E124F #311E81 #442AB3 #6146D4

Accessibility & contrast

On white

12.86

#311E81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.63

#311E81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311E81

12.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311E81	#FFFFFF	#000000	##FFFFFF
##311E81	1.00	12.86	1.63	12.86
#FFFFFF	12.86	1.00	21.00	1.00
#000000	1.63	21.00	1.00	21.00
##FFFFFF	12.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003584

Deuteranopia (green-blind)

#002E7F

Tritanopia (blue-blind)

#003A4E

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #311e81;
/* rgb */ color: rgb(49, 30, 129);
/* oklch */ color: oklch(33.3% 0.155 282.8);

Tailwind

colors: {
  custom: {
    50: '#745ca7',
    500: '#311e81',
    950: '#000000',
  },
}

SCSS

$custom: #311e81;
$custom-light: #745ca7;
$custom-dark: #000000;

JSON

{
  "hex": "#311e81",
  "rgb": {
    "r": 49,
    "g": 30,
    "b": 129
  },
  "hsl": {
    "h": 251.515,
    "s": 62.264,
    "l": 31.176
  },
  "oklch": {
    "l": 0.33287,
    "c": 0.15496,
    "h": 282.8
  },
  "luminance": 0.03166
}

Semantic roles & 50–950 ramp

primary

#311E81

secondary

#9FB447

accent

#E542C6

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#09040F

muted

#7B797F

Preview Lab

Preview with #311E81

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

Preview Lab → · Contrast checker → · Palette generator →