#381B78#381B78

#381B78 is a dark, vivid violet. Relative luminance 0.030; OKLCH L 32.7% C 0.146 H 290.0°. Best body text is #FFFFFF at 13.16:1 contrast (WCAG AA passes).

Color values

HEX	#381B78
RGB	rgb(56, 27, 120)
HSL	hsl(259, 63%, 29%)
HSV	hsv(259, 78%, 47%)
CMYK	cmyk(53.3%, 77.5%, 0%, 52.9%)
CIE-LAB	lab(19.97, 37.33, -47.87)
CIE-LCH	lch(19.97, 60.71, 307.95°)
OKLab	oklab(32.67% 0.0502 -0.1375)
OKLCH	oklch(32.67% 0.146 290)
XYZ	xyz(5.4120, 2.9805, 18.0558)
Luminance	0.0298 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#381B78 #5B781B

analogous

#1B2D78 #381B78 #671B78

triadic

#381B78 #78381B #1B7838

tetradic

#381B78 #781B2D #5B781B #1B7867

square

#381B78 #781B2D #5B781B #1B7867

split-complementary

#381B78 #78671B #2D781B

monochromatic

#0C0619 #211046 #381B78 #4F26AA #6A3BD3

Accessibility & contrast

On white

13.16

#381B78 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.60

#381B78 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #381B78

13.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##381B78	#FFFFFF	#000000	##FFFFFF
##381B78	1.00	13.16	1.60	13.16
#FFFFFF	13.16	1.00	21.00	1.00
#000000	1.60	21.00	1.00	21.00
##FFFFFF	13.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00327B

Deuteranopia (green-blind)

#002E76

Tritanopia (blue-blind)

#213448

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #381b78;
/* rgb */ color: rgb(56, 27, 120);
/* oklch */ color: oklch(32.7% 0.146 290.0);

Tailwind

colors: {
  custom: {
    50: '#765ba0',
    500: '#381b78',
    950: '#000000',
  },
}

SCSS

$custom: #381b78;
$custom-light: #765ba0;
$custom-dark: #000000;

JSON

{
  "hex": "#381b78",
  "rgb": {
    "r": 56,
    "g": 27,
    "b": 120
  },
  "hsl": {
    "h": 258.71,
    "s": 63.265,
    "l": 28.824
  },
  "oklch": {
    "l": 0.32675,
    "c": 0.1464,
    "h": 290
  },
  "luminance": 0.02981
}

Semantic roles & 50–950 ramp

primary

#381B78

secondary

#8BAC43

accent

#E641B3

background

#F7F5F9

surface

#EEE9F2

border

#C9C5CC

text

#09040F

muted

#7B797E

Preview Lab

Preview with #381B78

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

Preview Lab → · Contrast checker → · Palette generator →