#383DB5#383DB5

#383DB5 is a dark, vivid blue. Relative luminance 0.075; OKLCH L 43.7% C 0.185 H 273.9°. Best body text is #FFFFFF at 8.39:1 contrast (WCAG AA passes).

Color values

HEX	#383DB5
RGB	rgb(56, 61, 181)
HSL	hsl(238, 53%, 46%)
HSV	hsv(238, 69%, 71%)
CMYK	cmyk(69.1%, 66.3%, 0%, 29%)
CIE-LAB	lab(32.95, 37.30, -64.08)
CIE-LCH	lch(32.95, 74.14, 300.20°)
OKLab	oklab(43.73% 0.0125 -0.185)
OKLCH	oklch(43.73% 0.185 273.9)
XYZ	xyz(11.6373, 7.5133, 44.5440)
Luminance	0.0751 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#383DB5 #B5B038

analogous

#387CB5 #383DB5 #7238B5

triadic

#383DB5 #B5383D #3DB538

tetradic

#383DB5 #B5387C #B5B038 #38B572

square

#383DB5 #B5387C #B5B038 #38B572

split-complementary

#383DB5 #B57238 #7CB538

monochromatic

#1B1D58 #2A2D86 #383DB5 #5D62CD #8C8FDB

Accessibility & contrast

On white

8.39

#383DB5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.50

#383DB5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #383DB5

8.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##383DB5	#FFFFFF	#000000	##FFFFFF
##383DB5	1.00	8.39	2.50	8.39
#FFFFFF	8.39	1.00	21.00	1.00
#000000	2.50	21.00	1.00	21.00
##FFFFFF	8.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053B9

Deuteranopia (green-blind)

#0048B3

Tritanopia (blue-blind)

#005D73

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #383db5;
/* rgb */ color: rgb(56, 61, 181);
/* oklch */ color: oklch(43.7% 0.185 273.9);

Tailwind

colors: {
  custom: {
    50: '#7f73cc',
    500: '#383db5',
    950: '#000000',
  },
}

SCSS

$custom: #383db5;
$custom-light: #7f73cc;
$custom-dark: #000000;

JSON

{
  "hex": "#383db5",
  "rgb": {
    "r": 56,
    "g": 61,
    "b": 181
  },
  "hsl": {
    "h": 237.6,
    "s": 52.743,
    "l": 46.471
  },
  "oklch": {
    "l": 0.43726,
    "c": 0.18547,
    "h": 273.9
  },
  "luminance": 0.07514
}

Semantic roles & 50–950 ramp

primary

#383DB5

secondary

#C6C383

accent

#D64CDC

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #383DB5

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

Preview Lab → · Contrast checker → · Palette generator →