#311C87#311C87

#311C87 is a dark, vivid violet. Relative luminance 0.032; OKLCH L 33.7% C 0.164 H 282.0°. Best body text is #FFFFFF at 12.75:1 contrast (WCAG AA passes).

Color values

HEX	#311C87
RGB	rgb(49, 28, 135)
HSL	hsl(252, 66%, 32%)
HSV	hsv(252, 79%, 53%)
CMYK	cmyk(63.7%, 79.3%, 0%, 47.1%)
CIE-LAB	lab(20.95, 40.41, -55.78)
CIE-LCH	lch(20.95, 68.88, 305.92°)
OKLab	oklab(33.66% 0.0341 -0.1609)
OKLCH	oklch(33.66% 0.164 282)
XYZ	xyz(6.0537, 3.2323, 23.2219)
Luminance	0.0323 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311C87 #72871C

analogous

#1C3C87 #311C87 #671C87

triadic

#311C87 #87311C #1C8731

tetradic

#311C87 #871C3C #72871C #1C8767

square

#311C87 #871C3C #72871C #1C8767

split-complementary

#311C87 #87671C #3C871C

monochromatic

#0C0722 #1F1154 #311C87 #4327BA #6245D8

Accessibility & contrast

On white

12.75

#311C87 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#311C87 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311C87

12.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311C87	#FFFFFF	#000000	##FFFFFF
##311C87	1.00	12.75	1.65	12.75
#FFFFFF	12.75	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00368A

Deuteranopia (green-blind)

#002F85

Tritanopia (blue-blind)

#003B51

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #311c87;
/* rgb */ color: rgb(49, 28, 135);
/* oklch */ color: oklch(33.7% 0.164 282.0);

Tailwind

colors: {
  custom: {
    50: '#755bab',
    500: '#311c87',
    950: '#000000',
  },
}

SCSS

$custom: #311c87;
$custom-light: #755bab;
$custom-dark: #000000;

JSON

{
  "hex": "#311c87",
  "rgb": {
    "r": 49,
    "g": 28,
    "b": 135
  },
  "hsl": {
    "h": 251.776,
    "s": 65.644,
    "l": 31.961
  },
  "oklch": {
    "l": 0.33655,
    "c": 0.16448,
    "h": 282
  },
  "luminance": 0.03233
}

Semantic roles & 50–950 ramp

primary

#311C87

secondary

#A3BA45

accent

#E93FC7

background

#F7F5FA

surface

#EEE9F4

border

#C9C5CE

text

#090410

muted

#7B797F

Preview Lab

Preview with #311C87

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

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