#381B79#381B79

#381B79 is a dark, vivid violet. Relative luminance 0.030; OKLCH L 32.8% C 0.148 H 289.8°. Best body text is #FFFFFF at 13.12:1 contrast (WCAG AA passes).

Color values

HEX	#381B79
RGB	rgb(56, 27, 121)
HSL	hsl(259, 64%, 29%)
HSV	hsv(259, 78%, 47%)
CMYK	cmyk(53.7%, 77.7%, 0%, 52.5%)
CIE-LAB	lab(20.06, 37.63, -48.35)
CIE-LCH	lch(20.06, 61.27, 307.89°)
OKLab	oklab(32.77% 0.0499 -0.1389)
OKLCH	oklch(32.77% 0.148 289.8)
XYZ	xyz(5.4730, 3.0049, 18.3771)
Luminance	0.0301 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#381B79 #5C791B

analogous

#1B2D79 #381B79 #671B79

triadic

#381B79 #79381B #1B7938

tetradic

#381B79 #791B2D #5C791B #1B7967

square

#381B79 #791B2D #5C791B #1B7967

split-complementary

#381B79 #79671B #2D791B

monochromatic

#0C0619 #211047 #381B79 #4F26AB #6A3BD3

Accessibility & contrast

On white

13.12

#381B79 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.60

#381B79 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #381B79

13.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##381B79	#FFFFFF	#000000	##FFFFFF
##381B79	1.00	13.12	1.60	13.12
#FFFFFF	13.12	1.00	21.00	1.00
#000000	1.60	21.00	1.00	21.00
##FFFFFF	13.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00327C

Deuteranopia (green-blind)

#002E77

Tritanopia (blue-blind)

#203549

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #381b79;
/* rgb */ color: rgb(56, 27, 121);
/* oklch */ color: oklch(32.8% 0.148 289.8);

Tailwind

colors: {
  custom: {
    50: '#765ba1',
    500: '#381b79',
    950: '#000000',
  },
}

SCSS

$custom: #381b79;
$custom-light: #765ba1;
$custom-dark: #000000;

JSON

{
  "hex": "#381b79",
  "rgb": {
    "r": 56,
    "g": 27,
    "b": 121
  },
  "hsl": {
    "h": 258.511,
    "s": 63.514,
    "l": 29.02
  },
  "oklch": {
    "l": 0.32773,
    "c": 0.14763,
    "h": 289.8
  },
  "luminance": 0.03005
}

Semantic roles & 50–950 ramp

primary

#381B79

secondary

#8CAD43

accent

#E741B4

background

#F7F5FA

surface

#EEE9F3

border

#C9C5CD

text

#09040F

muted

#7B797F

Preview Lab

Preview with #381B79

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

Preview Lab → · Contrast checker → · Palette generator →