#311A75#311A75

#311A75 is a dark, vivid violet. Relative luminance 0.027; OKLCH L 31.5% C 0.144 H 286.4°. Best body text is #FFFFFF at 13.68:1 contrast (WCAG AA passes).

Color values

HEX	#311A75
RGB	rgb(49, 26, 117)
HSL	hsl(255, 64%, 28%)
HSV	hsv(255, 78%, 46%)
CMYK	cmyk(58.1%, 77.8%, 0%, 54.1%)
CIE-LAB	lab(18.70, 35.85, -48.06)
CIE-LCH	lch(18.70, 59.96, 306.72°)
OKLab	oklab(31.51% 0.0406 -0.1383)
OKLCH	oklch(31.51% 0.144 286.4)
XYZ	xyz(4.8459, 2.6758, 17.0873)
Luminance	0.0268 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311A75 #5E751A

analogous

#1A3075 #311A75 #5E1A75

triadic

#311A75 #75311A #1A7531

tetradic

#311A75 #751A30 #5E751A #1A755E

square

#311A75 #751A30 #5E751A #1A755E

split-complementary

#311A75 #755E1A #30751A

monochromatic

#0A0619 #1C0F43 #311A75 #4625A7 #5E37D3

Accessibility & contrast

On white

13.68

#311A75 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#311A75 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311A75

13.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311A75	#FFFFFF	#000000	##FFFFFF
##311A75	1.00	13.68	1.54	13.68
#FFFFFF	13.68	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003078

Deuteranopia (green-blind)

#002B73

Tritanopia (blue-blind)

#123346

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #311a75;
/* rgb */ color: rgb(49, 26, 117);
/* oklch */ color: oklch(31.5% 0.144 286.4);

Tailwind

colors: {
  custom: {
    50: '#72599e',
    500: '#311a75',
    950: '#000000',
  },
}

SCSS

$custom: #311a75;
$custom-light: #72599e;
$custom-dark: #000000;

JSON

{
  "hex": "#311a75",
  "rgb": {
    "r": 49,
    "g": 26,
    "b": 117
  },
  "hsl": {
    "h": 255.165,
    "s": 63.636,
    "l": 28.039
  },
  "oklch": {
    "l": 0.31505,
    "c": 0.14416,
    "h": 286.4
  },
  "luminance": 0.02676
}

Semantic roles & 50–950 ramp

primary

#311A75

secondary

#8FAA41

accent

#E741BD

background

#F7F5F9

surface

#EDE9F2

border

#C8C5CC

text

#09040E

muted

#7B797E

Preview Lab

Preview with #311A75

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

Preview Lab → · Contrast checker → · Palette generator →