#3841B0#3841B0

#3841B0 is a dark, vivid blue. Relative luminance 0.078; OKLCH L 44.0% C 0.174 H 273.3°. Best body text is #FFFFFF at 8.23:1 contrast (WCAG AA passes).

Color values

HEX	#3841B0
RGB	rgb(56, 65, 176)
HSL	hsl(236, 52%, 45%)
HSV	hsv(236, 68%, 69%)
CMYK	cmyk(68.2%, 63.1%, 0%, 31%)
CIE-LAB	lab(33.47, 33.04, -60.26)
CIE-LCH	lch(33.47, 68.72, 298.73°)
OKLab	oklab(43.97% 0.0099 -0.1738)
OKLCH	oklch(43.97% 0.174 273.3)
XYZ	xyz(11.3550, 7.7549, 41.9643)
Luminance	0.0776 (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

#3841B0 #B0A738

analogous

#387DB0 #3841B0 #6B38B0

triadic

#3841B0 #B03841 #41B038

tetradic

#3841B0 #B0387D #B0A738 #38B06B

square

#3841B0 #B0387D #B0A738 #38B06B

split-complementary

#3841B0 #B06B38 #7DB038

monochromatic

#1A1F53 #293082 #3841B0 #5B63CB #898FD9

Accessibility & contrast

On white

8.23

#3841B0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.55

#3841B0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3841B0

8.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3841B0	#FFFFFF	#000000	##FFFFFF
##3841B0	1.00	8.23	2.55	8.23
#FFFFFF	8.23	1.00	21.00	1.00
#000000	2.55	21.00	1.00	21.00
##FFFFFF	8.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054B4

Deuteranopia (green-blind)

#0049AE

Tritanopia (blue-blind)

#005D72

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #3841b0;
/* rgb */ color: rgb(56, 65, 176);
/* oklch */ color: oklch(44.0% 0.174 273.3);

Tailwind

colors: {
  custom: {
    50: '#7e75c9',
    500: '#3841b0',
    950: '#000000',
  },
}

SCSS

$custom: #3841b0;
$custom-light: #7e75c9;
$custom-dark: #000000;

JSON

{
  "hex": "#3841b0",
  "rgb": {
    "r": 56,
    "g": 65,
    "b": 176
  },
  "hsl": {
    "h": 235.5,
    "s": 51.724,
    "l": 45.49
  },
  "oklch": {
    "l": 0.43972,
    "c": 0.17412,
    "h": 273.3
  },
  "luminance": 0.07756
}

Semantic roles & 50–950 ramp

primary

#3841B0

secondary

#C4BF80

accent

#D04DDB

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3841B0

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

Preview Lab → · Contrast checker → · Palette generator →