#3841B3#3841B3

#3841B3 is a dark, vivid blue. Relative luminance 0.079; OKLCH L 44.2% C 0.178 H 273.1°. Best body text is #FFFFFF at 8.15:1 contrast (WCAG AA passes).

Color values

HEX	#3841B3
RGB	rgb(56, 65, 179)
HSL	hsl(236, 52%, 46%)
HSV	hsv(236, 69%, 70%)
CMYK	cmyk(68.7%, 63.7%, 0%, 29.8%)
CIE-LAB	lab(33.72, 34.09, -61.63)
CIE-LCH	lch(33.72, 70.43, 298.95°)
OKLab	oklab(44.24% 0.0097 -0.1778)
OKLCH	oklch(44.24% 0.178 273.1)
XYZ	xyz(11.6551, 7.8749, 43.5449)
Luminance	0.0788 (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

#3841B3 #B3AA38

analogous

#387EB3 #3841B3 #6C38B3

triadic

#3841B3 #B33841 #41B338

tetradic

#3841B3 #B3387E #B3AA38 #38B36C

square

#3841B3 #B3387E #B3AA38 #38B36C

split-complementary

#3841B3 #B36C38 #7EB338

monochromatic

#1B1F56 #293084 #3841B3 #5C64CC #8B91DB

Accessibility & contrast

On white

8.15

#3841B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.58

#3841B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3841B3

8.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3841B3	#FFFFFF	#000000	##FFFFFF
##3841B3	1.00	8.15	2.58	8.15
#FFFFFF	8.15	1.00	21.00	1.00
#000000	2.58	21.00	1.00	21.00
##FFFFFF	8.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055B7

Deuteranopia (green-blind)

#004AB1

Tritanopia (blue-blind)

#005E74

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #3841b3;
/* rgb */ color: rgb(56, 65, 179);
/* oklch */ color: oklch(44.2% 0.178 273.1);

Tailwind

colors: {
  custom: {
    50: '#7e75cb',
    500: '#3841b3',
    950: '#000000',
  },
}

SCSS

$custom: #3841b3;
$custom-light: #7e75cb;
$custom-dark: #000000;

JSON

{
  "hex": "#3841b3",
  "rgb": {
    "r": 56,
    "g": 65,
    "b": 179
  },
  "hsl": {
    "h": 235.61,
    "s": 52.34,
    "l": 46.078
  },
  "oklch": {
    "l": 0.44237,
    "c": 0.17812,
    "h": 273.1
  },
  "luminance": 0.07876
}

Semantic roles & 50–950 ramp

primary

#3841B3

secondary

#C5C082

accent

#D14CDC

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3841B3

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

Preview Lab → · Contrast checker → · Palette generator →