#311C72#311C72

#311C72 is a dark, vivid violet. Relative luminance 0.027; OKLCH L 31.5% C 0.138 H 286.7°. Best body text is #FFFFFF at 13.64:1 contrast (WCAG AA passes).

Color values

HEX	#311C72
RGB	rgb(49, 28, 114)
HSL	hsl(255, 61%, 28%)
HSV	hsv(255, 75%, 45%)
CMYK	cmyk(57%, 75.4%, 0%, 55.3%)
CIE-LAB	lab(18.79, 33.79, -45.97)
CIE-LCH	lch(18.79, 57.05, 306.32°)
OKLab	oklab(31.48% 0.0397 -0.1322)
OKLCH	oklch(31.48% 0.138 286.7)
XYZ	xyz(4.7182, 2.6981, 16.1885)
Luminance	0.0270 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311C72 #5D721C

analogous

#1C3272 #311C72 #5C1C72

triadic

#311C72 #72311C #1C7231

tetradic

#311C72 #721C32 #5D721C #1C725C

square

#311C72 #721C32 #5D721C #1C725C

split-complementary

#311C72 #725C1C #32721C

monochromatic

#0B0619 #1C1041 #311C72 #4628A3 #5E3ACF

Accessibility & contrast

On white

13.64

#311C72 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#311C72 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311C72

13.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311C72	#FFFFFF	#000000	##FFFFFF
##311C72	1.00	13.64	1.54	13.64
#FFFFFF	13.64	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003075

Deuteranopia (green-blind)

#002B70

Tritanopia (blue-blind)

#153345

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #311c72;
/* rgb */ color: rgb(49, 28, 114);
/* oklch */ color: oklch(31.5% 0.138 286.7);

Tailwind

colors: {
  custom: {
    50: '#715a9b',
    500: '#311c72',
    950: '#000000',
  },
}

SCSS

$custom: #311c72;
$custom-light: #715a9b;
$custom-dark: #000000;

JSON

{
  "hex": "#311c72",
  "rgb": {
    "r": 49,
    "g": 28,
    "b": 114
  },
  "hsl": {
    "h": 254.651,
    "s": 60.563,
    "l": 27.843
  },
  "oklch": {
    "l": 0.31482,
    "c": 0.13803,
    "h": 286.7
  },
  "luminance": 0.02698
}

Semantic roles & 50–950 ramp

primary

#311C72

secondary

#8EA643

accent

#E444BD

background

#F7F5F9

surface

#EDE9F2

border

#C8C5CC

text

#08040E

muted

#7B797E

Preview Lab

Preview with #311C72

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

Preview Lab → · Contrast checker → · Palette generator →