#383FB8#383FB8

#383FB8 is a dark, vivid blue. Relative luminance 0.079; OKLCH L 44.3% C 0.187 H 273.3°. Best body text is #FFFFFF at 8.17:1 contrast (WCAG AA passes).

Color values

HEX	#383FB8
RGB	rgb(56, 63, 184)
HSL	hsl(237, 53%, 47%)
HSV	hsv(237, 70%, 72%)
CMYK	cmyk(69.6%, 65.8%, 0%, 27.8%)
CIE-LAB	lab(33.68, 37.09, -64.65)
CIE-LCH	lch(33.68, 74.54, 299.84°)
OKLab	oklab(44.34% 0.0108 -0.1867)
OKLCH	oklch(44.34% 0.187 273.3)
XYZ	xyz(12.0572, 7.8553, 46.2189)
Luminance	0.0786 (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

#383FB8 #B8B138

analogous

#387FB8 #383FB8 #7138B8

triadic

#383FB8 #B8383F #3FB838

tetradic

#383FB8 #B8387F #B8B138 #38B871

square

#383FB8 #B8387F #B8B138 #38B871

split-complementary

#383FB8 #B87138 #7FB838

monochromatic

#1B1F5A #2A2F89 #383FB8 #5F65CE #8E92DD

Accessibility & contrast

On white

8.17

#383FB8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.57

#383FB8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #383FB8

8.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##383FB8	#FFFFFF	#000000	##FFFFFF
##383FB8	1.00	8.17	2.57	8.17
#FFFFFF	8.17	1.00	21.00	1.00
#000000	2.57	21.00	1.00	21.00
##FFFFFF	8.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055BC

Deuteranopia (green-blind)

#0049B6

Tritanopia (blue-blind)

#005F76

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #383fb8;
/* rgb */ color: rgb(56, 63, 184);
/* oklch */ color: oklch(44.3% 0.187 273.3);

Tailwind

colors: {
  custom: {
    50: '#8074ce',
    500: '#383fb8',
    950: '#000000',
  },
}

SCSS

$custom: #383fb8;
$custom-light: #8074ce;
$custom-dark: #000000;

JSON

{
  "hex": "#383fb8",
  "rgb": {
    "r": 56,
    "g": 63,
    "b": 184
  },
  "hsl": {
    "h": 236.719,
    "s": 53.333,
    "l": 47.059
  },
  "oklch": {
    "l": 0.44341,
    "c": 0.18704,
    "h": 273.3
  },
  "luminance": 0.07856
}

Semantic roles & 50–950 ramp

primary

#383FB8

secondary

#C7C485

accent

#D54BDD

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0C0814

muted

#7D7B82

Preview Lab

Preview with #383FB8

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

Preview Lab → · Contrast checker → · Palette generator →