#3841BB#3841BB

#3841BB is a dark, vivid blue. Relative luminance 0.082; OKLCH L 45.0% C 0.189 H 272.8°. Best body text is #FFFFFF at 7.95:1 contrast (WCAG AA passes).

Color values

HEX	#3841BB
RGB	rgb(56, 65, 187)
HSL	hsl(236, 54%, 48%)
HSV	hsv(236, 70%, 73%)
CMYK	cmyk(70.1%, 65.2%, 0%, 26.7%)
CIE-LAB	lab(34.41, 36.89, -65.22)
CIE-LCH	lch(34.41, 74.93, 299.49°)
OKLab	oklab(44.96% 0.0092 -0.1884)
OKLCH	oklch(44.96% 0.189 272.8)
XYZ	xyz(12.4878, 8.2080, 47.9303)
Luminance	0.0821 (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

#3841BB #BBB238

analogous

#3882BB #3841BB #7138BB

triadic

#3841BB #BB3841 #41BB38

tetradic

#3841BB #BB3882 #BBB238 #38BB71

square

#3841BB #BB3882 #BBB238 #38BB71

split-complementary

#3841BB #BB7138 #82BB38

monochromatic

#1C205D #2A318C #3841BB #6168D0 #9095DE

Accessibility & contrast

On white

7.95

#3841BB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.64

#3841BB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3841BB

7.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3841BB	#FFFFFF	#000000	##FFFFFF
##3841BB	1.00	7.95	2.64	7.95
#FFFFFF	7.95	1.00	21.00	1.00
#000000	2.64	21.00	1.00	21.00
##FFFFFF	7.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057BF

Deuteranopia (green-blind)

#004BB9

Tritanopia (blue-blind)

#006178

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #3841bb;
/* rgb */ color: rgb(56, 65, 187);
/* oklch */ color: oklch(45.0% 0.189 272.8);

Tailwind

colors: {
  custom: {
    50: '#8076d0',
    500: '#3841bb',
    950: '#000000',
  },
}

SCSS

$custom: #3841bb;
$custom-light: #8076d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3841bb",
  "rgb": {
    "r": 56,
    "g": 65,
    "b": 187
  },
  "hsl": {
    "h": 235.878,
    "s": 53.909,
    "l": 47.647
  },
  "oklch": {
    "l": 0.44956,
    "c": 0.18861,
    "h": 272.8
  },
  "luminance": 0.08209
}

Semantic roles & 50–950 ramp

primary

#3841BB

secondary

#C8C486

accent

#D34BDD

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0C0814

muted

#7D7B82

Preview Lab

Preview with #3841BB

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

Preview Lab → · Contrast checker → · Palette generator →