#383FBB#383FBB

#383FBB is a dark, vivid blue. Relative luminance 0.080; OKLCH L 44.6% C 0.191 H 273.2°. Best body text is #FFFFFF at 8.09:1 contrast (WCAG AA passes).

Color values

HEX	#383FBB
RGB	rgb(56, 63, 187)
HSL	hsl(237, 54%, 48%)
HSV	hsv(237, 70%, 73%)
CMYK	cmyk(70.1%, 66.3%, 0%, 26.7%)
CIE-LAB	lab(33.95, 38.13, -65.99)
CIE-LCH	lch(33.95, 76.21, 300.02°)
OKLab	oklab(44.62% 0.0106 -0.1906)
OKLCH	oklch(44.62% 0.191 273.2)
XYZ	xyz(12.3750, 7.9824, 47.8927)
Luminance	0.0798 (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

#383FBB #BBB438

analogous

#3880BB #383FBB #7338BB

triadic

#383FBB #BB383F #3FBB38

tetradic

#383FBB #BB3880 #BBB438 #38BB73

square

#383FBB #BB3880 #BBB438 #38BB73

split-complementary

#383FBB #BB7338 #80BB38

monochromatic

#1C1F5D #2A2F8C #383FBB #6167D0 #9094DE

Accessibility & contrast

On white

8.09

#383FBB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.60

#383FBB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #383FBB

8.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##383FBB	#FFFFFF	#000000	##FFFFFF
##383FBB	1.00	8.09	2.60	8.09
#FFFFFF	8.09	1.00	21.00	1.00
#000000	2.60	21.00	1.00	21.00
##FFFFFF	8.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056BF

Deuteranopia (green-blind)

#004AB9

Tritanopia (blue-blind)

#006077

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #383fbb;
/* rgb */ color: rgb(56, 63, 187);
/* oklch */ color: oklch(44.6% 0.191 273.2);

Tailwind

colors: {
  custom: {
    50: '#8074d1',
    500: '#383fbb',
    950: '#000000',
  },
}

SCSS

$custom: #383fbb;
$custom-light: #8074d1;
$custom-dark: #000000;

JSON

{
  "hex": "#383fbb",
  "rgb": {
    "r": 56,
    "g": 63,
    "b": 187
  },
  "hsl": {
    "h": 236.794,
    "s": 53.909,
    "l": 47.647
  },
  "oklch": {
    "l": 0.44617,
    "c": 0.19093,
    "h": 273.2
  },
  "luminance": 0.07984
}

Semantic roles & 50–950 ramp

primary

#383FBB

secondary

#C8C586

accent

#D54BDD

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0C0814

muted

#7D7B82

Preview Lab

Preview with #383FBB

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

Preview Lab → · Contrast checker → · Palette generator →