#3841B1#3841B1

#3841B1 is a dark, vivid blue. Relative luminance 0.078; OKLCH L 44.1% C 0.175 H 273.2°. Best body text is #FFFFFF at 8.21:1 contrast (WCAG AA passes).

Color values

HEX	#3841B1
RGB	rgb(56, 65, 177)
HSL	hsl(236, 52%, 46%)
HSV	hsv(236, 68%, 69%)
CMYK	cmyk(68.4%, 63.3%, 0%, 30.6%)
CIE-LAB	lab(33.55, 33.39, -60.72)
CIE-LCH	lch(33.55, 69.29, 298.81°)
OKLab	oklab(44.06% 0.0099 -0.1752)
OKLCH	oklch(44.06% 0.175 273.2)
XYZ	xyz(11.4543, 7.7946, 42.4873)
Luminance	0.0780 (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

#3841B1 #B1A838

analogous

#387DB1 #3841B1 #6B38B1

triadic

#3841B1 #B13841 #41B138

tetradic

#3841B1 #B1387D #B1A838 #38B16B

square

#3841B1 #B1387D #B1A838 #38B16B

split-complementary

#3841B1 #B16B38 #7DB138

monochromatic

#1B1F54 #293083 #3841B1 #5B63CB #8A90DA

Accessibility & contrast

On white

8.21

#3841B1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.56

#3841B1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3841B1

8.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3841B1	#FFFFFF	#000000	##FFFFFF
##3841B1	1.00	8.21	2.56	8.21
#FFFFFF	8.21	1.00	21.00	1.00
#000000	2.56	21.00	1.00	21.00
##FFFFFF	8.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054B5

Deuteranopia (green-blind)

#0049AF

Tritanopia (blue-blind)

#005E73

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #3841b1;
/* rgb */ color: rgb(56, 65, 177);
/* oklch */ color: oklch(44.1% 0.175 273.2);

Tailwind

colors: {
  custom: {
    50: '#7e75c9',
    500: '#3841b1',
    950: '#000000',
  },
}

SCSS

$custom: #3841b1;
$custom-light: #7e75c9;
$custom-dark: #000000;

JSON

{
  "hex": "#3841b1",
  "rgb": {
    "r": 56,
    "g": 65,
    "b": 177
  },
  "hsl": {
    "h": 235.537,
    "s": 51.931,
    "l": 45.686
  },
  "oklch": {
    "l": 0.4406,
    "c": 0.17546,
    "h": 273.2
  },
  "luminance": 0.07796
}

Semantic roles & 50–950 ramp

primary

#3841B1

secondary

#C4BF81

accent

#D14CDB

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3841B1

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

Preview Lab → · Contrast checker → · Palette generator →