#311A99#311A99

#311A99 is a dark, vivid violet. Relative luminance 0.037; OKLCH L 35.4% C 0.188 H 279.1°. Best body text is #FFFFFF at 12.08:1 contrast (WCAG AA passes).

Color values

HEX	#311A99
RGB	rgb(49, 26, 153)
HSL	hsl(251, 71%, 35%)
HSV	hsv(251, 83%, 60%)
CMYK	cmyk(68%, 83%, 0%, 40%)
CIE-LAB	lab(22.62, 46.87, -64.20)
CIE-LCH	lch(22.62, 79.49, 306.13°)
OKLab	oklab(35.41% 0.0296 -0.1854)
OKLCH	oklch(35.41% 0.188 279.1)
XYZ	xyz(7.3839, 3.6910, 30.4541)
Luminance	0.0369 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311A99 #82991A

analogous

#1A4399 #311A99 #701A99

triadic

#311A99 #99311A #1A9931

tetradic

#311A99 #991A43 #82991A #1A9970

square

#311A99 #991A43 #82991A #1A9970

split-complementary

#311A99 #99701A #43991A

monochromatic

#0F0830 #201165 #311A99 #4223CD #684DE1

Accessibility & contrast

On white

12.08

#311A99 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#311A99 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311A99

12.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311A99	#FFFFFF	#000000	##FFFFFF
##311A99	1.00	12.08	1.74	12.08
#FFFFFF	12.08	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B9C

Deuteranopia (green-blind)

#003197

Tritanopia (blue-blind)

#00425B

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #311a99;
/* rgb */ color: rgb(49, 26, 153);
/* oklch */ color: oklch(35.4% 0.188 279.1);

Tailwind

colors: {
  custom: {
    50: '#795cb8',
    500: '#311a99',
    950: '#000000',
  },
}

SCSS

$custom: #311a99;
$custom-light: #795cb8;
$custom-dark: #000000;

JSON

{
  "hex": "#311a99",
  "rgb": {
    "r": 49,
    "g": 26,
    "b": 153
  },
  "hsl": {
    "h": 250.866,
    "s": 70.95,
    "l": 35.098
  },
  "oklch": {
    "l": 0.35408,
    "c": 0.18776,
    "h": 279.1
  },
  "luminance": 0.03692
}

Semantic roles & 50–950 ramp

primary

#311A99

secondary

#ADC34C

accent

#EE3ACD

background

#F8F5FB

surface

#EFE9F6

border

#CAC5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #311A99

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

Preview Lab → · Contrast checker → · Palette generator →