#311D7A#311D7A

#311D7A is a dark, vivid violet. Relative luminance 0.029; OKLCH L 32.4% C 0.147 H 284.5°. Best body text is #FFFFFF at 13.23:1 contrast (WCAG AA passes).

Color values

HEX	#311D7A
RGB	rgb(49, 29, 122)
HSL	hsl(253, 62%, 30%)
HSV	hsv(253, 76%, 48%)
CMYK	cmyk(59.8%, 76.2%, 0%, 52.2%)
CIE-LAB	lab(19.79, 35.77, -49.47)
CIE-LCH	lch(19.79, 61.05, 305.87°)
OKLab	oklab(32.43% 0.0369 -0.1425)
OKLCH	oklch(32.43% 0.147 284.5)
XYZ	xyz(5.2178, 2.9365, 18.7004)
Luminance	0.0294 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311D7A #667A1D

analogous

#1D387A #311D7A #601D7A

triadic

#311D7A #7A311D #1D7A31

tetradic

#311D7A #7A1D38 #667A1D #1D7A60

square

#311D7A #7A1D38 #667A1D #1D7A60

split-complementary

#311D7A #7A601D #387A1D

monochromatic

#0A0619 #1D1149 #311D7A #4529AB #5F40D2

Accessibility & contrast

On white

13.23

#311D7A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#311D7A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311D7A

13.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311D7A	#FFFFFF	#000000	##FFFFFF
##311D7A	1.00	13.23	1.59	13.23
#FFFFFF	13.23	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00327D

Deuteranopia (green-blind)

#002D78

Tritanopia (blue-blind)

#09374A

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #311d7a;
/* rgb */ color: rgb(49, 29, 122);
/* oklch */ color: oklch(32.4% 0.147 284.5);

Tailwind

colors: {
  custom: {
    50: '#725ba1',
    500: '#311d7a',
    950: '#000000',
  },
}

SCSS

$custom: #311d7a;
$custom-light: #725ba1;
$custom-dark: #000000;

JSON

{
  "hex": "#311d7a",
  "rgb": {
    "r": 49,
    "g": 29,
    "b": 122
  },
  "hsl": {
    "h": 252.903,
    "s": 61.589,
    "l": 29.608
  },
  "oklch": {
    "l": 0.32429,
    "c": 0.14716,
    "h": 284.5
  },
  "luminance": 0.02937
}

Semantic roles & 50–950 ramp

primary

#311D7A

secondary

#97AE45

accent

#E543C2

background

#F7F5FA

surface

#EDE9F3

border

#C8C5CD

text

#09040F

muted

#7B797F

Preview Lab

Preview with #311D7A

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

Preview Lab → · Contrast checker → · Palette generator →