#381B9F#381B9F

#381B9F is a dark, vivid violet. Relative luminance 0.041; OKLCH L 36.8% C 0.193 H 281.4°. Best body text is #FFFFFF at 11.50:1 contrast (WCAG AA passes).

Color values

HEX	#381B9F
RGB	rgb(56, 27, 159)
HSL	hsl(253, 71%, 36%)
HSV	hsv(253, 83%, 62%)
CMYK	cmyk(64.8%, 83%, 0%, 37.6%)
CIE-LAB	lab(24.09, 48.85, -65.44)
CIE-LCH	lch(24.09, 81.66, 306.74°)
OKLab	oklab(36.78% 0.0379 -0.1888)
OKLCH	oklch(36.78% 0.193 281.4)
XYZ	xyz(8.2789, 4.1272, 33.1545)
Luminance	0.0413 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#381B9F #829F1B

analogous

#1B409F #381B9F #7A1B9F

triadic

#381B9F #9F381B #1B9F38

tetradic

#381B9F #9F1B40 #829F1B #1B9F7A

square

#381B9F #9F1B40 #829F1B #1B9F7A

split-complementary

#381B9F #9F7A1B #409F1B

monochromatic

#130936 #26126B #381B9F #4A24D3 #7253E2

Accessibility & contrast

On white

11.50

#381B9F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#381B9F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #381B9F

11.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##381B9F	#FFFFFF	#000000	##FFFFFF
##381B9F	1.00	11.50	1.83	11.50
#FFFFFF	11.50	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003EA3

Deuteranopia (green-blind)

#00349D

Tritanopia (blue-blind)

#00445E

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #381b9f;
/* rgb */ color: rgb(56, 27, 159);
/* oklch */ color: oklch(36.8% 0.193 281.4);

Tailwind

colors: {
  custom: {
    50: '#7d5dbd',
    500: '#381b9f',
    950: '#000000',
  },
}

SCSS

$custom: #381b9f;
$custom-light: #7d5dbd;
$custom-dark: #000000;

JSON

{
  "hex": "#381b9f",
  "rgb": {
    "r": 56,
    "g": 27,
    "b": 159
  },
  "hsl": {
    "h": 253.182,
    "s": 70.968,
    "l": 36.471
  },
  "oklch": {
    "l": 0.36775,
    "c": 0.19259,
    "h": 281.4
  },
  "luminance": 0.04128
}

Semantic roles & 50–950 ramp

primary

#381B9F

secondary

#ABC551

accent

#EE3AC6

background

#F8F5FB

surface

#EFE9F7

border

#CAC5D0

text

#0B0412

muted

#7C7981

Preview Lab

Preview with #381B9F

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

Preview Lab → · Contrast checker → · Palette generator →