#381AB3#381AB3

#381AB3 is a dark, highly saturated violet. Relative luminance 0.048; OKLCH L 38.9% C 0.216 H 278.4°. Best body text is #FFFFFF at 10.68:1 contrast (WCAG AA passes).

Color values

HEX	#381AB3
RGB	rgb(56, 26, 179)
HSL	hsl(252, 75%, 40%)
HSV	hsv(252, 85%, 70%)
CMYK	cmyk(68.7%, 85.5%, 0%, 29.8%)
CIE-LAB	lab(26.25, 54.96, -73.93)
CIE-LCH	lch(26.25, 92.12, 306.63°)
OKLab	oklab(38.93% 0.0316 -0.2135)
OKLCH	oklch(38.93% 0.216 278.4)
XYZ	xyz(10.1343, 4.8333, 43.0379)
Luminance	0.0483 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#381AB3 #95B31A

analogous

#1A48B3 #381AB3 #851AB3

triadic

#381AB3 #B3381A #1AB338

tetradic

#381AB3 #B31A48 #95B31A #1AB385

square

#381AB3 #B31A48 #95B31A #1AB385

split-complementary

#381AB3 #B3851A #48B31A

monochromatic

#170A48 #27127E #381AB3 #4E2AE0 #7A60E8

Accessibility & contrast

On white

10.68

#381AB3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#381AB3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #381AB3

10.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##381AB3	#FFFFFF	#000000	##FFFFFF
##381AB3	1.00	10.68	1.97	10.68
#FFFFFF	10.68	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0044B7

Deuteranopia (green-blind)

#0038B0

Tritanopia (blue-blind)

#004C6A

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #381ab3;
/* rgb */ color: rgb(56, 26, 179);
/* oklch */ color: oklch(38.9% 0.216 278.4);

Tailwind

colors: {
  custom: {
    50: '#825ecb',
    500: '#381ab3',
    950: '#000000',
  },
}

SCSS

$custom: #381ab3;
$custom-light: #825ecb;
$custom-dark: #000000;

JSON

{
  "hex": "#381ab3",
  "rgb": {
    "r": 56,
    "g": 26,
    "b": 179
  },
  "hsl": {
    "h": 251.765,
    "s": 74.634,
    "l": 40.196
  },
  "oklch": {
    "l": 0.38933,
    "c": 0.21579,
    "h": 278.4
  },
  "luminance": 0.04834
}

Semantic roles & 50–950 ramp

primary

#381AB3

secondary

#B6CC5D

accent

#F137CD

background

#F8F5FC

surface

#F0EAF9

border

#CBC6D2

text

#0C0514

muted

#7D7982

Preview Lab

Preview with #381AB3

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

Preview Lab → · Contrast checker → · Palette generator →