#381B7B#381B7B

#381B7B is a dark, vivid violet. Relative luminance 0.031; OKLCH L 33.0% C 0.150 H 289.2°. Best body text is #FFFFFF at 13.04:1 contrast (WCAG AA passes).

Color values

HEX	#381B7B
RGB	rgb(56, 27, 123)
HSL	hsl(258, 64%, 29%)
HSV	hsv(258, 78%, 48%)
CMYK	cmyk(54.5%, 78%, 0%, 51.8%)
CIE-LAB	lab(20.26, 38.23, -49.30)
CIE-LCH	lch(20.26, 62.39, 307.79°)
OKLab	oklab(32.97% 0.0494 -0.1417)
OKLCH	oklch(32.97% 0.15 289.2)
XYZ	xyz(5.5969, 3.0544, 19.0297)
Luminance	0.0306 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#381B7B #5E7B1B

analogous

#1B2E7B #381B7B #681B7B

triadic

#381B7B #7B381B #1B7B38

tetradic

#381B7B #7B1B2E #5E7B1B #1B7B68

square

#381B7B #7B1B2E #5E7B1B #1B7B68

split-complementary

#381B7B #7B681B #2E7B1B

monochromatic

#0B0619 #211049 #381B7B #4F26AD #6A3CD4

Accessibility & contrast

On white

13.04

#381B7B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#381B7B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #381B7B

13.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##381B7B	#FFFFFF	#000000	##FFFFFF
##381B7B	1.00	13.04	1.61	13.04
#FFFFFF	13.04	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00337E

Deuteranopia (green-blind)

#002E79

Tritanopia (blue-blind)

#1F364A

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #381b7b;
/* rgb */ color: rgb(56, 27, 123);
/* oklch */ color: oklch(33.0% 0.150 289.2);

Tailwind

colors: {
  custom: {
    50: '#775ba2',
    500: '#381b7b',
    950: '#000000',
  },
}

SCSS

$custom: #381b7b;
$custom-light: #775ba2;
$custom-dark: #000000;

JSON

{
  "hex": "#381b7b",
  "rgb": {
    "r": 56,
    "g": 27,
    "b": 123
  },
  "hsl": {
    "h": 258.125,
    "s": 64,
    "l": 29.412
  },
  "oklch": {
    "l": 0.32972,
    "c": 0.15007,
    "h": 289.2
  },
  "luminance": 0.03055
}

Semantic roles & 50–950 ramp

primary

#381B7B

secondary

#8EAF43

accent

#E741B5

background

#F7F5FA

surface

#EEE9F4

border

#C9C5CE

text

#09040F

muted

#7B797F

Preview Lab

Preview with #381B7B

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

Preview Lab → · Contrast checker → · Palette generator →