#381B77#381B77

#381B77 is a dark, vivid violet. Relative luminance 0.030; OKLCH L 32.6% C 0.145 H 290.3°. Best body text is #FFFFFF at 13.20:1 contrast (WCAG AA passes).

Color values

HEX	#381B77
RGB	rgb(56, 27, 119)
HSL	hsl(259, 63%, 29%)
HSV	hsv(259, 77%, 47%)
CMYK	cmyk(52.9%, 77.3%, 0%, 53.3%)
CIE-LAB	lab(19.87, 37.04, -47.39)
CIE-LCH	lch(19.87, 60.14, 308.01°)
OKLab	oklab(32.58% 0.0505 -0.1361)
OKLCH	oklch(32.58% 0.145 290.3)
XYZ	xyz(5.3516, 2.9563, 17.7378)
Luminance	0.0296 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Royal Purple (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#381B77 #5A771B

analogous

#1B2C77 #381B77 #661B77

triadic

#381B77 #77381B #1B7738

tetradic

#381B77 #771B2C #5A771B #1B7766

square

#381B77 #771B2C #5A771B #1B7766

split-complementary

#381B77 #77661B #2C771B

monochromatic

#0C0619 #211045 #381B77 #4F26A9 #6A3AD2

Accessibility & contrast

On white

13.20

#381B77 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#381B77 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #381B77

13.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##381B77	#FFFFFF	#000000	##FFFFFF
##381B77	1.00	13.20	1.59	13.20
#FFFFFF	13.20	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00327A

Deuteranopia (green-blind)

#002E75

Tritanopia (blue-blind)

#223447

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #381b77;
/* rgb */ color: rgb(56, 27, 119);
/* oklch */ color: oklch(32.6% 0.145 290.3);

Tailwind

colors: {
  custom: {
    50: '#765b9f',
    500: '#381b77',
    950: '#000000',
  },
}

SCSS

$custom: #381b77;
$custom-light: #765b9f;
$custom-dark: #000000;

JSON

{
  "hex": "#381b77",
  "rgb": {
    "r": 56,
    "g": 27,
    "b": 119
  },
  "hsl": {
    "h": 258.913,
    "s": 63.014,
    "l": 28.627
  },
  "oklch": {
    "l": 0.32576,
    "c": 0.14517,
    "h": 290.3
  },
  "luminance": 0.02957
}

Semantic roles & 50–950 ramp

primary

#381B77

secondary

#8AAB42

accent

#E642B2

background

#F7F5F9

surface

#EEE9F2

border

#C9C5CC

text

#09040F

muted

#7B797E

Preview Lab

Preview with #381B77

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

Preview Lab → · Contrast checker → · Palette generator →