#311D72#311D72

#311D72 is a dark, vivid violet. Relative luminance 0.027; OKLCH L 31.6% C 0.137 H 286.5°. Best body text is #FFFFFF at 13.55:1 contrast (WCAG AA passes).

Color values

HEX	#311D72
RGB	rgb(49, 29, 114)
HSL	hsl(254, 59%, 28%)
HSV	hsv(254, 75%, 45%)
CMYK	cmyk(57%, 74.6%, 0%, 55.3%)
CIE-LAB	lab(19.00, 33.22, -45.63)
CIE-LCH	lch(19.00, 56.44, 306.06°)
OKLab	oklab(31.63% 0.0388 -0.1312)
OKLCH	oklch(31.63% 0.137 286.5)
XYZ	xyz(4.7423, 2.7463, 16.1965)
Luminance	0.0275 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311D72 #5E721D

analogous

#1D3372 #311D72 #5B1D72

triadic

#311D72 #72311D #1D7231

tetradic

#311D72 #721D33 #5E721D #1D725B

square

#311D72 #721D33 #5E721D #1D725B

split-complementary

#311D72 #725B1D #33721D

monochromatic

#0A0618 #1C1141 #311D72 #4629A3 #5E3CCD

Accessibility & contrast

On white

13.55

#311D72 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#311D72 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311D72

13.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311D72	#FFFFFF	#000000	##FFFFFF
##311D72	1.00	13.55	1.55	13.55
#FFFFFF	13.55	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003075

Deuteranopia (green-blind)

#002C70

Tritanopia (blue-blind)

#153445

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #311d72;
/* rgb */ color: rgb(49, 29, 114);
/* oklch */ color: oklch(31.6% 0.137 286.5);

Tailwind

colors: {
  custom: {
    50: '#715b9b',
    500: '#311d72',
    950: '#000000',
  },
}

SCSS

$custom: #311d72;
$custom-light: #715b9b;
$custom-dark: #000000;

JSON

{
  "hex": "#311d72",
  "rgb": {
    "r": 49,
    "g": 29,
    "b": 114
  },
  "hsl": {
    "h": 254.118,
    "s": 59.441,
    "l": 28.039
  },
  "oklch": {
    "l": 0.31628,
    "c": 0.13682,
    "h": 286.5
  },
  "luminance": 0.02747
}

Semantic roles & 50–950 ramp

primary

#311D72

secondary

#8FA645

accent

#E345BE

background

#F7F5F9

surface

#EDE9F2

border

#C8C5CC

text

#08040E

muted

#7B797E

Preview Lab

Preview with #311D72

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

Preview Lab → · Contrast checker → · Palette generator →