#383DB4#383DB4

#383DB4 is a dark, vivid blue. Relative luminance 0.075; OKLCH L 43.6% C 0.184 H 273.9°. Best body text is #FFFFFF at 8.42:1 contrast (WCAG AA passes).

Color values

HEX	#383DB4
RGB	rgb(56, 61, 180)
HSL	hsl(238, 53%, 46%)
HSV	hsv(238, 69%, 71%)
CMYK	cmyk(68.9%, 66.1%, 0%, 29.4%)
CIE-LAB	lab(32.86, 36.95, -63.63)
CIE-LCH	lch(32.86, 73.58, 300.14°)
OKLab	oklab(43.63% 0.0126 -0.1837)
OKLCH	oklch(43.63% 0.184 273.9)
XYZ	xyz(11.5351, 7.4725, 44.0056)
Luminance	0.0747 (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

#383DB4 #B4AF38

analogous

#387BB4 #383DB4 #7138B4

triadic

#383DB4 #B4383D #3DB438

tetradic

#383DB4 #B4387B #B4AF38 #38B471

square

#383DB4 #B4387B #B4AF38 #38B471

split-complementary

#383DB4 #B47138 #7BB438

monochromatic

#1B1D57 #292D85 #383DB4 #5D61CD #8B8FDB

Accessibility & contrast

On white

8.42

#383DB4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#383DB4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #383DB4

8.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##383DB4	#FFFFFF	#000000	##FFFFFF
##383DB4	1.00	8.42	2.49	8.42
#FFFFFF	8.42	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053B8

Deuteranopia (green-blind)

#0048B2

Tritanopia (blue-blind)

#005C73

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #383db4;
/* rgb */ color: rgb(56, 61, 180);
/* oklch */ color: oklch(43.6% 0.184 273.9);

Tailwind

colors: {
  custom: {
    50: '#7f73cb',
    500: '#383db4',
    950: '#000000',
  },
}

SCSS

$custom: #383db4;
$custom-light: #7f73cb;
$custom-dark: #000000;

JSON

{
  "hex": "#383db4",
  "rgb": {
    "r": 56,
    "g": 61,
    "b": 180
  },
  "hsl": {
    "h": 237.581,
    "s": 52.542,
    "l": 46.275
  },
  "oklch": {
    "l": 0.43634,
    "c": 0.18417,
    "h": 273.9
  },
  "luminance": 0.07474
}

Semantic roles & 50–950 ramp

primary

#383DB4

secondary

#C5C382

accent

#D64CDC

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #383DB4

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

Preview Lab → · Contrast checker → · Palette generator →