#311A72#311A72

#311A72 is a dark, vivid violet. Relative luminance 0.026; OKLCH L 31.2% C 0.140 H 287.2°. Best body text is #FFFFFF at 13.80:1 contrast (WCAG AA passes).

Color values

HEX	#311A72
RGB	rgb(49, 26, 114)
HSL	hsl(256, 63%, 27%)
HSV	hsv(256, 77%, 45%)
CMYK	cmyk(57%, 77.2%, 0%, 55.3%)
CIE-LAB	lab(18.39, 34.92, -46.62)
CIE-LCH	lch(18.39, 58.25, 306.83°)
OKLab	oklab(31.2% 0.0414 -0.1341)
OKLCH	oklch(31.2% 0.14 287.2)
XYZ	xyz(4.6724, 2.6064, 16.1732)
Luminance	0.0261 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311A72 #5B721A

analogous

#1A2F72 #311A72 #5D1A72

triadic

#311A72 #72311A #1A7231

tetradic

#311A72 #721A2F #5B721A #1A725D

square

#311A72 #721A2F #5B721A #1A725D

split-complementary

#311A72 #725D1A #2F721A

monochromatic

#0B0619 #1C0F40 #311A72 #4625A4 #5E35D1

Accessibility & contrast

On white

13.80

#311A72 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#311A72 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311A72

13.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311A72	#FFFFFF	#000000	##FFFFFF
##311A72	1.00	13.80	1.52	13.80
#FFFFFF	13.80	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F75

Deuteranopia (green-blind)

#002A70

Tritanopia (blue-blind)

#153244

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #311a72;
/* rgb */ color: rgb(49, 26, 114);
/* oklch */ color: oklch(31.2% 0.140 287.2);

Tailwind

colors: {
  custom: {
    50: '#71599b',
    500: '#311a72',
    950: '#000000',
  },
}

SCSS

$custom: #311a72;
$custom-light: #71599b;
$custom-dark: #000000;

JSON

{
  "hex": "#311a72",
  "rgb": {
    "r": 49,
    "g": 26,
    "b": 114
  },
  "hsl": {
    "h": 255.682,
    "s": 62.857,
    "l": 27.451
  },
  "oklch": {
    "l": 0.312,
    "c": 0.14036,
    "h": 287.2
  },
  "luminance": 0.02607
}

Semantic roles & 50–950 ramp

primary

#311A72

secondary

#8CA741

accent

#E642BB

background

#F7F5F9

surface

#EDE9F2

border

#C8C5CC

text

#08040E

muted

#7B797E

Preview Lab

Preview with #311A72

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

Preview Lab → · Contrast checker → · Palette generator →