#381B8D#381B8D

#381B8D is a dark, vivid violet. Relative luminance 0.035; OKLCH L 34.8% C 0.172 H 284.8°. Best body text is #FFFFFF at 12.28:1 contrast (WCAG AA passes).

Color values

HEX	#381B8D
RGB	rgb(56, 27, 141)
HSL	hsl(255, 68%, 33%)
HSV	hsv(255, 81%, 55%)
CMYK	cmyk(60.3%, 80.9%, 0%, 44.7%)
CIE-LAB	lab(22.11, 43.58, -57.60)
CIE-LCH	lch(22.11, 72.22, 307.11°)
OKLab	oklab(34.83% 0.0439 -0.166)
OKLCH	oklch(34.83% 0.172 284.8)
XYZ	xyz(6.8291, 3.5473, 25.5190)
Luminance	0.0355 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#381B8D #708D1B

analogous

#1B378D #381B8D #711B8D

triadic

#381B8D #8D381B #1B8D38

tetradic

#381B8D #8D1B37 #708D1B #1B8D71

square

#381B8D #8D1B37 #708D1B #1B8D71

split-complementary

#381B8D #8D711B #378D1B

monochromatic

#0F0726 #24115A #381B8D #4C25C0 #6D47DC

Accessibility & contrast

On white

12.28

#381B8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.71

#381B8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #381B8D

12.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##381B8D	#FFFFFF	#000000	##FFFFFF
##381B8D	1.00	12.28	1.71	12.28
#FFFFFF	12.28	1.00	21.00	1.00
#000000	1.71	21.00	1.00	21.00
##FFFFFF	12.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003890

Deuteranopia (green-blind)

#00318B

Tritanopia (blue-blind)

#043D54

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #381b8d;
/* rgb */ color: rgb(56, 27, 141);
/* oklch */ color: oklch(34.8% 0.172 284.8);

Tailwind

colors: {
  custom: {
    50: '#7a5caf',
    500: '#381b8d',
    950: '#000000',
  },
}

SCSS

$custom: #381b8d;
$custom-light: #7a5caf;
$custom-dark: #000000;

JSON

{
  "hex": "#381b8d",
  "rgb": {
    "r": 56,
    "g": 27,
    "b": 141
  },
  "hsl": {
    "h": 255.263,
    "s": 67.857,
    "l": 32.941
  },
  "oklch": {
    "l": 0.34826,
    "c": 0.17167,
    "h": 284.8
  },
  "luminance": 0.03548
}

Semantic roles & 50–950 ramp

primary

#381B8D

secondary

#9FBD46

accent

#EB3DBF

background

#F7F5FA

surface

#EEE9F5

border

#C9C5CF

text

#0A0411

muted

#7C7980

Preview Lab

Preview with #381B8D

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

Preview Lab → · Contrast checker → · Palette generator →