#311A71#311A71

#311A71 is a dark, vivid violet. Relative luminance 0.026; OKLCH L 31.1% C 0.139 H 287.4°. Best body text is #FFFFFF at 13.84:1 contrast (WCAG AA passes).

Color values

HEX	#311A71
RGB	rgb(49, 26, 113)
HSL	hsl(256, 63%, 27%)
HSV	hsv(256, 77%, 44%)
CMYK	cmyk(56.6%, 77%, 0%, 55.7%)
CIE-LAB	lab(18.29, 34.60, -46.14)
CIE-LCH	lch(18.29, 57.67, 306.87°)
OKLab	oklab(31.1% 0.0417 -0.1327)
OKLCH	oklch(31.1% 0.139 287.4)
XYZ	xyz(4.6158, 2.5838, 15.8751)
Luminance	0.0258 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311A71 #5A711A

analogous

#1A2F71 #311A71 #5D1A71

triadic

#311A71 #71311A #1A7131

tetradic

#311A71 #711A2F #5A711A #1A715D

square

#311A71 #711A2F #5A711A #1A715D

split-complementary

#311A71 #715D1A #2F711A

monochromatic

#0B0619 #1B0F3F #311A71 #4725A3 #5E35D0

Accessibility & contrast

On white

13.84

#311A71 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#311A71 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311A71

13.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311A71	#FFFFFF	#000000	##FFFFFF
##311A71	1.00	13.84	1.52	13.84
#FFFFFF	13.84	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F74

Deuteranopia (green-blind)

#002A6F

Tritanopia (blue-blind)

#163244

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #311a71;
/* rgb */ color: rgb(49, 26, 113);
/* oklch */ color: oklch(31.1% 0.139 287.4);

Tailwind

colors: {
  custom: {
    50: '#71599b',
    500: '#311a71',
    950: '#000000',
  },
}

SCSS

$custom: #311a71;
$custom-light: #71599b;
$custom-dark: #000000;

JSON

{
  "hex": "#311a71",
  "rgb": {
    "r": 49,
    "g": 26,
    "b": 113
  },
  "hsl": {
    "h": 255.862,
    "s": 62.59,
    "l": 27.255
  },
  "oklch": {
    "l": 0.31099,
    "c": 0.13909,
    "h": 287.4
  },
  "luminance": 0.02584
}

Semantic roles & 50–950 ramp

primary

#311A71

secondary

#8BA641

accent

#E642BA

background

#F7F5F9

surface

#EDE9F2

border

#C8C5CC

text

#08040E

muted

#7B797E

Preview Lab

Preview with #311A71

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

Preview Lab → · Contrast checker → · Palette generator →