#3941B8#3941B8

#3941B8 is a dark, vivid blue. Relative luminance 0.081; OKLCH L 44.7% C 0.184 H 273.3°. Best body text is #FFFFFF at 8.01:1 contrast (WCAG AA passes).

Color values

HEX	#3941B8
RGB	rgb(57, 65, 184)
HSL	hsl(236, 53%, 47%)
HSV	hsv(236, 69%, 72%)
CMYK	cmyk(69%, 64.7%, 0%, 27.8%)
CIE-LAB	lab(34.21, 35.97, -63.78)
CIE-LCH	lch(34.21, 73.23, 299.42°)
OKLab	oklab(44.75% 0.0105 -0.1841)
OKLCH	oklch(44.75% 0.184 273.3)
XYZ	xyz(12.2265, 8.1100, 46.2592)
Luminance	0.0811 (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

#3941B8 #B8B039

analogous

#3981B8 #3941B8 #7039B8

triadic

#3941B8 #B83941 #41B839

tetradic

#3941B8 #B83981 #B8B039 #39B870

square

#3941B8 #B83981 #B8B039 #39B870

split-complementary

#3941B8 #B87039 #81B839

monochromatic

#1C205B #2B3089 #3941B8 #6067CE #8F94DC

Accessibility & contrast

On white

8.01

#3941B8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.62

#3941B8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3941B8

8.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3941B8	#FFFFFF	#000000	##FFFFFF
##3941B8	1.00	8.01	2.62	8.01
#FFFFFF	8.01	1.00	21.00	1.00
#000000	2.62	21.00	1.00	21.00
##FFFFFF	8.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056BC

Deuteranopia (green-blind)

#004BB6

Tritanopia (blue-blind)

#006076

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #3941b8;
/* rgb */ color: rgb(57, 65, 184);
/* oklch */ color: oklch(44.7% 0.184 273.3);

Tailwind

colors: {
  custom: {
    50: '#8076ce',
    500: '#3941b8',
    950: '#000000',
  },
}

SCSS

$custom: #3941b8;
$custom-light: #8076ce;
$custom-dark: #000000;

JSON

{
  "hex": "#3941b8",
  "rgb": {
    "r": 57,
    "g": 65,
    "b": 184
  },
  "hsl": {
    "h": 236.22,
    "s": 52.697,
    "l": 47.255
  },
  "oklch": {
    "l": 0.44745,
    "c": 0.18444,
    "h": 273.3
  },
  "luminance": 0.08111
}

Semantic roles & 50–950 ramp

primary

#3941B8

secondary

#C7C386

accent

#D34CDC

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0C0814

muted

#7D7B82

Preview Lab

Preview with #3941B8

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

Preview Lab → · Contrast checker → · Palette generator →