#311B87#311B87

#311B87 is a dark, vivid violet. Relative luminance 0.032; OKLCH L 33.5% C 0.165 H 282.1°. Best body text is #FFFFFF at 12.83:1 contrast (WCAG AA passes).

Color values

HEX	#311B87
RGB	rgb(49, 27, 135)
HSL	hsl(252, 67%, 32%)
HSV	hsv(252, 80%, 53%)
CMYK	cmyk(63.7%, 80%, 0%, 47.1%)
CIE-LAB	lab(20.77, 40.92, -56.08)
CIE-LCH	lch(20.77, 69.42, 306.12°)
OKLab	oklab(33.53% 0.0347 -0.1618)
OKLCH	oklch(33.53% 0.165 282.1)
XYZ	xyz(6.0304, 3.1857, 23.2141)
Luminance	0.0319 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311B87 #71871B

analogous

#1B3B87 #311B87 #671B87

triadic

#311B87 #87311B #1B8731

tetradic

#311B87 #871B3B #71871B #1B8767

square

#311B87 #871B3B #71871B #1B8767

split-complementary

#311B87 #87671B #3B871B

monochromatic

#0C0721 #1E1154 #311B87 #4425BA #6243D9

Accessibility & contrast

On white

12.83

#311B87 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#311B87 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311B87

12.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311B87	#FFFFFF	#000000	##FFFFFF
##311B87	1.00	12.83	1.64	12.83
#FFFFFF	12.83	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00358A

Deuteranopia (green-blind)

#002E85

Tritanopia (blue-blind)

#003B51

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #311b87;
/* rgb */ color: rgb(49, 27, 135);
/* oklch */ color: oklch(33.5% 0.165 282.1);

Tailwind

colors: {
  custom: {
    50: '#755bab',
    500: '#311b87',
    950: '#000000',
  },
}

SCSS

$custom: #311b87;
$custom-light: #755bab;
$custom-dark: #000000;

JSON

{
  "hex": "#311b87",
  "rgb": {
    "r": 49,
    "g": 27,
    "b": 135
  },
  "hsl": {
    "h": 252.222,
    "s": 66.667,
    "l": 31.765
  },
  "oklch": {
    "l": 0.3353,
    "c": 0.16544,
    "h": 282.1
  },
  "luminance": 0.03186
}

Semantic roles & 50–950 ramp

primary

#311B87

secondary

#A2BA44

accent

#EA3EC7

background

#F7F5FA

surface

#EEE9F4

border

#C9C5CE

text

#090410

muted

#7B797F

Preview Lab

Preview with #311B87

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

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