#381FA4#381FA4

#381FA4 is a dark, vivid violet. Relative luminance 0.045; OKLCH L 37.8% C 0.195 H 280.1°. Best body text is #FFFFFF at 11.05:1 contrast (WCAG AA passes).

Color values

HEX	#381FA4
RGB	rgb(56, 31, 164)
HSL	hsl(251, 68%, 38%)
HSV	hsv(251, 81%, 64%)
CMYK	cmyk(65.9%, 81.1%, 0%, 35.7%)
CIE-LAB	lab(25.26, 48.51, -66.54)
CIE-LCH	lch(25.26, 82.35, 306.10°)
OKLab	oklab(37.75% 0.0343 -0.1921)
OKLCH	oklch(37.75% 0.195 280.1)
XYZ	xyz(8.8196, 4.5004, 35.5186)
Luminance	0.0450 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#381FA4 #8BA41F

analogous

#1F48A4 #381FA4 #7A1FA4

triadic

#381FA4 #A4381F #1FA438

tetradic

#381FA4 #A41F48 #8BA41F #1FA47A

square

#381FA4 #A41F48 #8BA41F #1FA47A

split-complementary

#381FA4 #A47A1F #48A41F

monochromatic

#150C3D #261571 #381FA4 #4A2AD7 #765DE0

Accessibility & contrast

On white

11.05

#381FA4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#381FA4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #381FA4

11.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##381FA4	#FFFFFF	#000000	##FFFFFF
##381FA4	1.00	11.05	1.90	11.05
#FFFFFF	11.05	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0041A8

Deuteranopia (green-blind)

#0037A2

Tritanopia (blue-blind)

#004862

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #381fa4;
/* rgb */ color: rgb(56, 31, 164);
/* oklch */ color: oklch(37.8% 0.195 280.1);

Tailwind

colors: {
  custom: {
    50: '#7e60c0',
    500: '#381fa4',
    950: '#000000',
  },
}

SCSS

$custom: #381fa4;
$custom-light: #7e60c0;
$custom-dark: #000000;

JSON

{
  "hex": "#381fa4",
  "rgb": {
    "r": 56,
    "g": 31,
    "b": 164
  },
  "hsl": {
    "h": 251.278,
    "s": 68.205,
    "l": 38.235
  },
  "oklch": {
    "l": 0.3775,
    "c": 0.19512,
    "h": 280.1
  },
  "luminance": 0.04501
}

Semantic roles & 50–950 ramp

primary

#381FA4

secondary

#B1C55A

accent

#EB3DCA

background

#F8F5FC

surface

#EFEAF8

border

#CAC6D1

text

#0B0512

muted

#7C7981

Preview Lab

Preview with #381FA4

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

Preview Lab → · Contrast checker → · Palette generator →