#381F81#381F81

#381F81 is a dark, vivid violet. Relative luminance 0.034; OKLCH L 34.1% C 0.153 H 286.9°. Best body text is #FFFFFF at 12.49:1 contrast (WCAG AA passes).

Color values

HEX	#381F81
RGB	rgb(56, 31, 129)
HSL	hsl(255, 61%, 31%)
HSV	hsv(255, 76%, 51%)
CMYK	cmyk(56.6%, 76%, 0%, 49.4%)
CIE-LAB	lab(21.60, 37.92, -50.91)
CIE-LCH	lch(21.60, 63.48, 306.68°)
OKLab	oklab(34.1% 0.0444 -0.1465)
OKLCH	oklch(34.1% 0.153 286.9)
XYZ	xyz(6.0821, 3.4054, 21.1014)
Luminance	0.0341 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#381F81 #68811F

analogous

#1F3781 #381F81 #691F81

triadic

#381F81 #81381F #1F8138

tetradic

#381F81 #811F37 #68811F #1F8169

square

#381F81 #811F37 #68811F #1F8169

split-complementary

#381F81 #81691F #37811F

monochromatic

#0D071E #231350 #381F81 #4D2BB2 #6B47D3

Accessibility & contrast

On white

12.49

#381F81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#381F81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #381F81

12.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##381F81	#FFFFFF	#000000	##FFFFFF
##381F81	1.00	12.49	1.68	12.49
#FFFFFF	12.49	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003684

Deuteranopia (green-blind)

#00317F

Tritanopia (blue-blind)

#183A4E

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #381f81;
/* rgb */ color: rgb(56, 31, 129);
/* oklch */ color: oklch(34.1% 0.153 286.9);

Tailwind

colors: {
  custom: {
    50: '#775da7',
    500: '#381f81',
    950: '#000000',
  },
}

SCSS

$custom: #381f81;
$custom-light: #775da7;
$custom-dark: #000000;

JSON

{
  "hex": "#381f81",
  "rgb": {
    "r": 56,
    "g": 31,
    "b": 129
  },
  "hsl": {
    "h": 255.306,
    "s": 61.25,
    "l": 31.373
  },
  "oklch": {
    "l": 0.34095,
    "c": 0.15305,
    "h": 286.9
  },
  "luminance": 0.03406
}

Semantic roles & 50–950 ramp

primary

#381F81

secondary

#98B448

accent

#E443BB

background

#F7F5FA

surface

#EEE9F4

border

#C9C5CE

text

#0A040F

muted

#7C797F

Preview Lab

Preview with #381F81

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

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