#381B7D#381B7D

#381B7D is a dark, vivid violet. Relative luminance 0.031; OKLCH L 33.2% C 0.153 H 288.7°. Best body text is #FFFFFF at 12.95:1 contrast (WCAG AA passes).

Color values

HEX	#381B7D
RGB	rgb(56, 27, 125)
HSL	hsl(258, 64%, 30%)
HSV	hsv(258, 78%, 49%)
CMYK	cmyk(55.2%, 78.4%, 0%, 51%)
CIE-LAB	lab(20.46, 38.83, -50.25)
CIE-LCH	lch(20.46, 63.50, 307.69°)
OKLab	oklab(33.17% 0.0488 -0.1445)
OKLCH	oklch(33.17% 0.153 288.7)
XYZ	xyz(5.7234, 3.1050, 19.6958)
Luminance	0.0311 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#381B7D #607D1B

analogous

#1B2F7D #381B7D #691B7D

triadic

#381B7D #7D381B #1B7D38

tetradic

#381B7D #7D1B2F #607D1B #1B7D69

square

#381B7D #7D1B2F #607D1B #1B7D69

split-complementary

#381B7D #7D691B #2F7D1B

monochromatic

#0B0519 #21104B #381B7D #4F26AF #6A3DD5

Accessibility & contrast

On white

12.95

#381B7D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.62

#381B7D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #381B7D

12.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##381B7D	#FFFFFF	#000000	##FFFFFF
##381B7D	1.00	12.95	1.62	12.95
#FFFFFF	12.95	1.00	21.00	1.00
#000000	1.62	21.00	1.00	21.00
##FFFFFF	12.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003380

Deuteranopia (green-blind)

#002F7B

Tritanopia (blue-blind)

#1D364B

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #381b7d;
/* rgb */ color: rgb(56, 27, 125);
/* oklch */ color: oklch(33.2% 0.153 288.7);

Tailwind

colors: {
  custom: {
    50: '#775ba4',
    500: '#381b7d',
    950: '#000000',
  },
}

SCSS

$custom: #381b7d;
$custom-light: #775ba4;
$custom-dark: #000000;

JSON

{
  "hex": "#381b7d",
  "rgb": {
    "r": 56,
    "g": 27,
    "b": 125
  },
  "hsl": {
    "h": 257.755,
    "s": 64.474,
    "l": 29.804
  },
  "oklch": {
    "l": 0.33172,
    "c": 0.15251,
    "h": 288.7
  },
  "luminance": 0.03105
}

Semantic roles & 50–950 ramp

primary

#381B7D

secondary

#90B143

accent

#E740B6

background

#F7F5FA

surface

#EEE9F4

border

#C9C5CE

text

#09040F

muted

#7B797F

Preview Lab

Preview with #381B7D

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

Preview Lab → · Contrast checker → · Palette generator →