#311F8A#311F8A

#311F8A is a dark, vivid violet. Relative luminance 0.035; OKLCH L 34.4% C 0.165 H 280.9°. Best body text is #FFFFFF at 12.40:1 contrast (WCAG AA passes).

Color values

HEX	#311F8A
RGB	rgb(49, 31, 138)
HSL	hsl(250, 63%, 33%)
HSV	hsv(250, 78%, 54%)
CMYK	cmyk(64.5%, 77.5%, 0%, 45.9%)
CIE-LAB	lab(21.83, 39.76, -56.22)
CIE-LCH	lch(21.83, 68.86, 305.27°)
OKLab	oklab(34.36% 0.0313 -0.1622)
OKLCH	oklch(34.36% 0.165 280.9)
XYZ	xyz(6.3426, 3.4674, 24.3749)
Luminance	0.0347 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#311F8A #788A1F

analogous

#1F438A #311F8A #661F8A

triadic

#311F8A #8A311F #1F8A31

tetradic

#311F8A #8A1F43 #788A1F #1F8A66

square

#311F8A #8A1F43 #788A1F #1F8A66

split-complementary

#311F8A #8A661F #438A1F

monochromatic

#0E0926 #1F1458 #311F8A #432ABC #644CD7

Accessibility & contrast

On white

12.40

#311F8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#311F8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #311F8A

12.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##311F8A	#FFFFFF	#000000	##FFFFFF
##311F8A	1.00	12.40	1.69	12.40
#FFFFFF	12.40	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00388D

Deuteranopia (green-blind)

#003088

Tritanopia (blue-blind)

#003E53

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #311f8a;
/* rgb */ color: rgb(49, 31, 138);
/* oklch */ color: oklch(34.4% 0.165 280.9);

Tailwind

colors: {
  custom: {
    50: '#765dad',
    500: '#311f8a',
    950: '#000000',
  },
}

SCSS

$custom: #311f8a;
$custom-light: #765dad;
$custom-dark: #000000;

JSON

{
  "hex": "#311f8a",
  "rgb": {
    "r": 49,
    "g": 31,
    "b": 138
  },
  "hsl": {
    "h": 250.093,
    "s": 63.314,
    "l": 33.137
  },
  "oklch": {
    "l": 0.34364,
    "c": 0.16521,
    "h": 280.9
  },
  "luminance": 0.03468
}

Semantic roles & 50–950 ramp

primary

#311F8A

secondary

#A7BA4B

accent

#E641CB

background

#F7F5FA

surface

#EEE9F4

border

#C9C5CE

text

#090410

muted

#7B797F

Preview Lab

Preview with #311F8A

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

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