#381B7F#381B7F

#381B7F is a dark, vivid violet. Relative luminance 0.032; OKLCH L 33.4% C 0.155 H 288.1°. Best body text is #FFFFFF at 12.87:1 contrast (WCAG AA passes).

Color values

HEX	#381B7F
RGB	rgb(56, 27, 127)
HSL	hsl(257, 65%, 30%)
HSV	hsv(257, 79%, 50%)
CMYK	cmyk(55.9%, 78.7%, 0%, 50.2%)
CIE-LAB	lab(20.66, 39.42, -51.19)
CIE-LCH	lch(20.66, 64.61, 307.60°)
OKLab	oklab(33.37% 0.0482 -0.1472)
OKLCH	oklch(33.37% 0.155 288.1)
XYZ	xyz(5.8525, 3.1566, 20.3755)
Luminance	0.0316 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

#4B006E

ΔE00 6.42

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#381B7F #627F1B

analogous

#1B307F #381B7F #6A1B7F

triadic

#381B7F #7F381B #1B7F38

tetradic

#381B7F #7F1B30 #627F1B #1B7F6A

square

#381B7F #7F1B30 #627F1B #1B7F6A

split-complementary

#381B7F #7F6A1B #307F1B

monochromatic

#0B061A #22104D #381B7F #4E26B1 #6A3ED6

Accessibility & contrast

On white

12.87

#381B7F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.63

#381B7F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #381B7F

12.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##381B7F	#FFFFFF	#000000	##FFFFFF
##381B7F	1.00	12.87	1.63	12.87
#FFFFFF	12.87	1.00	21.00	1.00
#000000	1.63	21.00	1.00	21.00
##FFFFFF	12.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003482

Deuteranopia (green-blind)

#002F7D

Tritanopia (blue-blind)

#1B374C

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #381b7f;
/* rgb */ color: rgb(56, 27, 127);
/* oklch */ color: oklch(33.4% 0.155 288.1);

Tailwind

colors: {
  custom: {
    50: '#775ba5',
    500: '#381b7f',
    950: '#000000',
  },
}

SCSS

$custom: #381b7f;
$custom-light: #775ba5;
$custom-dark: #000000;

JSON

{
  "hex": "#381b7f",
  "rgb": {
    "r": 56,
    "g": 27,
    "b": 127
  },
  "hsl": {
    "h": 257.4,
    "s": 64.935,
    "l": 30.196
  },
  "oklch": {
    "l": 0.33374,
    "c": 0.15494,
    "h": 288.1
  },
  "luminance": 0.03157
}

Semantic roles & 50–950 ramp

primary

#381B7F

secondary

#92B343

accent

#E840B7

background

#F7F5FA

surface

#EEE9F4

border

#C9C5CE

text

#0A040F

muted

#7C797F

Preview Lab

Preview with #381B7F

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

Preview Lab → · Contrast checker → · Palette generator →