#311C8C#311C8C

#311C8C is a dark, vivid violet. Relative luminance 0.034; OKLCH L 34.2% C 0.171 H 281.0°. Best body text is #FFFFFF at 12.53:1 contrast (WCAG AA passes).

Color values

HEX	#311C8C
RGB	rgb(49, 28, 140)
HSL	hsl(251, 67%, 33%)
HSV	hsv(251, 80%, 55%)
CMYK	cmyk(65%, 80%, 0%, 45.1%)
CIE-LAB	lab(21.49, 41.96, -58.02)
CIE-LCH	lch(21.49, 71.60, 305.87°)
OKLab	oklab(34.19% 0.0326 -0.1674)
OKLCH	oklch(34.19% 0.171 281)
XYZ	xyz(6.4140, 3.3764, 25.1196)
Luminance	0.0338 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311C8C #778C1C

analogous

#1C3F8C #311C8C #691C8C

triadic

#311C8C #8C311C #1C8C31

tetradic

#311C8C #8C1C3F #778C1C #1C8C69

square

#311C8C #8C1C3F #778C1C #1C8C69

split-complementary

#311C8C #8C691C #3F8C1C

monochromatic

#0D0826 #1F1259 #311C8C #4326BF #6348DA

Accessibility & contrast

On white

12.53

#311C8C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#311C8C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311C8C

12.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311C8C	#FFFFFF	#000000	##FFFFFF
##311C8C	1.00	12.53	1.68	12.53
#FFFFFF	12.53	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00378F

Deuteranopia (green-blind)

#002F8A

Tritanopia (blue-blind)

#003D54

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #311c8c;
/* rgb */ color: rgb(49, 28, 140);
/* oklch */ color: oklch(34.2% 0.171 281.0);

Tailwind

colors: {
  custom: {
    50: '#765caf',
    500: '#311c8c',
    950: '#000000',
  },
}

SCSS

$custom: #311c8c;
$custom-light: #765caf;
$custom-dark: #000000;

JSON

{
  "hex": "#311c8c",
  "rgb": {
    "r": 49,
    "g": 28,
    "b": 140
  },
  "hsl": {
    "h": 251.25,
    "s": 66.667,
    "l": 32.941
  },
  "oklch": {
    "l": 0.34194,
    "c": 0.17058,
    "h": 281
  },
  "luminance": 0.03377
}

Semantic roles & 50–950 ramp

primary

#311C8C

secondary

#A6BC48

accent

#EA3EC9

background

#F7F5FA

surface

#EEE9F5

border

#C9C5CF

text

#0A0410

muted

#7C797F

Preview Lab

Preview with #311C8C

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

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