#381AB4#381AB4

#381AB4 is a dark, highly saturated violet. Relative luminance 0.049; OKLCH L 39.0% C 0.217 H 278.3°. Best body text is #FFFFFF at 10.63:1 contrast (WCAG AA passes).

Color values

HEX	#381AB4
RGB	rgb(56, 26, 180)
HSL	hsl(252, 75%, 40%)
HSV	hsv(252, 86%, 71%)
CMYK	cmyk(68.9%, 85.6%, 0%, 29.4%)
CIE-LAB	lab(26.37, 55.24, -74.33)
CIE-LCH	lch(26.37, 92.61, 306.62°)
OKLab	oklab(39.05% 0.0312 -0.2146)
OKLCH	oklch(39.05% 0.217 278.3)
XYZ	xyz(10.2358, 4.8739, 43.5725)
Luminance	0.0488 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#381AB4 #96B41A

analogous

#1A49B4 #381AB4 #851AB4

triadic

#381AB4 #B4381A #1AB438

tetradic

#381AB4 #B41A49 #96B41A #1AB485

square

#381AB4 #B41A49 #96B41A #1AB485

split-complementary

#381AB4 #B4851A #49B41A

monochromatic

#170B49 #27127F #381AB4 #4E2BE0 #7B60E8

Accessibility & contrast

On white

10.63

#381AB4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#381AB4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #381AB4

10.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##381AB4	#FFFFFF	#000000	##FFFFFF
##381AB4	1.00	10.63	1.98	10.63
#FFFFFF	10.63	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0044B8

Deuteranopia (green-blind)

#0038B1

Tritanopia (blue-blind)

#004D6B

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #381ab4;
/* rgb */ color: rgb(56, 26, 180);
/* oklch */ color: oklch(39.0% 0.217 278.3);

Tailwind

colors: {
  custom: {
    50: '#825ecc',
    500: '#381ab4',
    950: '#000000',
  },
}

SCSS

$custom: #381ab4;
$custom-light: #825ecc;
$custom-dark: #000000;

JSON

{
  "hex": "#381ab4",
  "rgb": {
    "r": 56,
    "g": 26,
    "b": 180
  },
  "hsl": {
    "h": 251.688,
    "s": 74.757,
    "l": 40.392
  },
  "oklch": {
    "l": 0.39048,
    "c": 0.2169,
    "h": 278.3
  },
  "luminance": 0.04875
}

Semantic roles & 50–950 ramp

primary

#381AB4

secondary

#B7CC5D

accent

#F136CD

background

#F8F5FC

surface

#F0EAF9

border

#CBC6D2

text

#0C0514

muted

#7D7982

Preview Lab

Preview with #381AB4

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

Preview Lab → · Contrast checker → · Palette generator →