#3840BD#3840BD

#3840BD is a dark, vivid blue. Relative luminance 0.082; OKLCH L 45.0% C 0.192 H 272.9°. Best body text is #FFFFFF at 7.97:1 contrast (WCAG AA passes).

Color values

HEX	#3840BD
RGB	rgb(56, 64, 189)
HSL	hsl(236, 54%, 48%)
HSV	hsv(236, 70%, 74%)
CMYK	cmyk(70.4%, 66.1%, 0%, 25.9%)
CIE-LAB	lab(34.36, 38.21, -66.49)
CIE-LCH	lch(34.36, 76.69, 299.88°)
OKLab	oklab(44.97% 0.0097 -0.1921)
OKLCH	oklch(44.97% 0.192 272.9)
XYZ	xyz(12.6465, 8.1804, 49.0467)
Luminance	0.0818 (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

#3840BD #BDB538

analogous

#3882BD #3840BD #7238BD

triadic

#3840BD #BD3840 #40BD38

tetradic

#3840BD #BD3882 #BDB538 #38BD72

square

#3840BD #BD3882 #BDB538 #38BD72

split-complementary

#3840BD #BD7238 #82BD38

monochromatic

#1C205F #2A308E #3840BD #6268D0 #9196DE

Accessibility & contrast

On white

7.97

#3840BD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.64

#3840BD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3840BD

7.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3840BD	#FFFFFF	#000000	##FFFFFF
##3840BD	1.00	7.97	2.64	7.97
#FFFFFF	7.97	1.00	21.00	1.00
#000000	2.64	21.00	1.00	21.00
##FFFFFF	7.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057C1

Deuteranopia (green-blind)

#004BBB

Tritanopia (blue-blind)

#006179

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #3840bd;
/* rgb */ color: rgb(56, 64, 189);
/* oklch */ color: oklch(45.0% 0.192 272.9);

Tailwind

colors: {
  custom: {
    50: '#8175d2',
    500: '#3840bd',
    950: '#000000',
  },
}

SCSS

$custom: #3840bd;
$custom-light: #8175d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3840bd",
  "rgb": {
    "r": 56,
    "g": 64,
    "b": 189
  },
  "hsl": {
    "h": 236.391,
    "s": 54.286,
    "l": 48.039
  },
  "oklch": {
    "l": 0.44969,
    "c": 0.19237,
    "h": 272.9
  },
  "luminance": 0.08182
}

Semantic roles & 50–950 ramp

primary

#3840BD

secondary

#C9C587

accent

#D54ADE

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #3840BD

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

Preview Lab → · Contrast checker → · Palette generator →