#381B8E#381B8E

#381B8E is a dark, vivid violet. Relative luminance 0.036; OKLCH L 34.9% C 0.173 H 284.6°. Best body text is #FFFFFF at 12.24:1 contrast (WCAG AA passes).

Color values

HEX	#381B8E
RGB	rgb(56, 27, 142)
HSL	hsl(255, 68%, 33%)
HSV	hsv(255, 81%, 56%)
CMYK	cmyk(60.6%, 81%, 0%, 44.3%)
CIE-LAB	lab(22.22, 43.87, -58.04)
CIE-LCH	lch(22.22, 72.76, 307.08°)
OKLab	oklab(34.93% 0.0436 -0.1673)
OKLCH	oklch(34.93% 0.173 284.6)
XYZ	xyz(6.9038, 3.5772, 25.9126)
Luminance	0.0358 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#381B8E #718E1B

analogous

#1B388E #381B8E #711B8E

triadic

#381B8E #8E381B #1B8E38

tetradic

#381B8E #8E1B38 #718E1B #1B8E71

square

#381B8E #8E1B38 #718E1B #1B8E71

split-complementary

#381B8E #8E711B #388E1B

monochromatic

#0F0727 #24115B #381B8E #4C25C1 #6D47DC

Accessibility & contrast

On white

12.24

#381B8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.72

#381B8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #381B8E

12.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##381B8E	#FFFFFF	#000000	##FFFFFF
##381B8E	1.00	12.24	1.72	12.24
#FFFFFF	12.24	1.00	21.00	1.00
#000000	1.72	21.00	1.00	21.00
##FFFFFF	12.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003891

Deuteranopia (green-blind)

#00318C

Tritanopia (blue-blind)

#013D55

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #381b8e;
/* rgb */ color: rgb(56, 27, 142);
/* oklch */ color: oklch(34.9% 0.173 284.6);

Tailwind

colors: {
  custom: {
    50: '#7a5cb0',
    500: '#381b8e',
    950: '#000000',
  },
}

SCSS

$custom: #381b8e;
$custom-light: #7a5cb0;
$custom-dark: #000000;

JSON

{
  "hex": "#381b8e",
  "rgb": {
    "r": 56,
    "g": 27,
    "b": 142
  },
  "hsl": {
    "h": 255.13,
    "s": 68.047,
    "l": 33.137
  },
  "oklch": {
    "l": 0.34932,
    "c": 0.17285,
    "h": 284.6
  },
  "luminance": 0.03578
}

Semantic roles & 50–950 ramp

primary

#381B8E

secondary

#A0BE47

accent

#EB3DBF

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0411

muted

#7C7980

Preview Lab

Preview with #381B8E

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

Preview Lab → · Contrast checker → · Palette generator →