#3841B4#3841B4

#3841B4 is a dark, vivid blue. Relative luminance 0.079; OKLCH L 44.3% C 0.179 H 273.1°. Best body text is #FFFFFF at 8.13:1 contrast (WCAG AA passes).

Color values

HEX	#3841B4
RGB	rgb(56, 65, 180)
HSL	hsl(236, 53%, 46%)
HSV	hsv(236, 69%, 71%)
CMYK	cmyk(68.9%, 63.9%, 0%, 29.4%)
CIE-LAB	lab(33.81, 34.44, -62.08)
CIE-LCH	lch(33.81, 70.99, 299.02°)
OKLab	oklab(44.33% 0.0097 -0.1792)
OKLCH	oklch(44.33% 0.179 273.1)
XYZ	xyz(11.7566, 7.9155, 44.0794)
Luminance	0.0792 (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

#3841B4 #B4AB38

analogous

#387FB4 #3841B4 #6D38B4

triadic

#3841B4 #B43841 #41B438

tetradic

#3841B4 #B4387F #B4AB38 #38B46D

square

#3841B4 #B4387F #B4AB38 #38B46D

split-complementary

#3841B4 #B46D38 #7FB438

monochromatic

#1B1F57 #293085 #3841B4 #5D65CD #8B91DB

Accessibility & contrast

On white

8.13

#3841B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.58

#3841B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3841B4

8.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3841B4	#FFFFFF	#000000	##FFFFFF
##3841B4	1.00	8.13	2.58	8.13
#FFFFFF	8.13	1.00	21.00	1.00
#000000	2.58	21.00	1.00	21.00
##FFFFFF	8.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055B8

Deuteranopia (green-blind)

#004AB2

Tritanopia (blue-blind)

#005F74

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #3841b4;
/* rgb */ color: rgb(56, 65, 180);
/* oklch */ color: oklch(44.3% 0.179 273.1);

Tailwind

colors: {
  custom: {
    50: '#7f75cb',
    500: '#3841b4',
    950: '#000000',
  },
}

SCSS

$custom: #3841b4;
$custom-light: #7f75cb;
$custom-dark: #000000;

JSON

{
  "hex": "#3841b4",
  "rgb": {
    "r": 56,
    "g": 65,
    "b": 180
  },
  "hsl": {
    "h": 235.645,
    "s": 52.542,
    "l": 46.275
  },
  "oklch": {
    "l": 0.44326,
    "c": 0.17944,
    "h": 273.1
  },
  "luminance": 0.07917
}

Semantic roles & 50–950 ramp

primary

#3841B4

secondary

#C5C182

accent

#D24CDC

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3841B4

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

Preview Lab → · Contrast checker → · Palette generator →