#3941B5#3941B5

#3941B5 is a dark, vivid blue. Relative luminance 0.080; OKLCH L 44.5% C 0.180 H 273.4°. Best body text is #FFFFFF at 8.09:1 contrast (WCAG AA passes).

Color values

HEX	#3941B5
RGB	rgb(57, 65, 181)
HSL	hsl(236, 52%, 47%)
HSV	hsv(236, 69%, 71%)
CMYK	cmyk(68.5%, 64.1%, 0%, 29%)
CIE-LAB	lab(33.95, 34.93, -62.43)
CIE-LCH	lch(33.95, 71.54, 299.23°)
OKLab	oklab(44.48% 0.0107 -0.1802)
OKLCH	oklch(44.48% 0.181 273.4)
XYZ	xyz(11.9153, 7.9855, 44.6205)
Luminance	0.0799 (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

#3941B5 #B5AD39

analogous

#397FB5 #3941B5 #6F39B5

triadic

#3941B5 #B53941 #41B539

tetradic

#3941B5 #B5397F #B5AD39 #39B56F

square

#3941B5 #B5397F #B5AD39 #39B56F

split-complementary

#3941B5 #B56F39 #7FB539

monochromatic

#1C2058 #2A3086 #3941B5 #5F66CD #8D92DB

Accessibility & contrast

On white

8.09

#3941B5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.60

#3941B5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3941B5

8.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3941B5	#FFFFFF	#000000	##FFFFFF
##3941B5	1.00	8.09	2.60	8.09
#FFFFFF	8.09	1.00	21.00	1.00
#000000	2.60	21.00	1.00	21.00
##FFFFFF	8.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056B9

Deuteranopia (green-blind)

#004AB3

Tritanopia (blue-blind)

#005F75

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #3941b5;
/* rgb */ color: rgb(57, 65, 181);
/* oklch */ color: oklch(44.5% 0.180 273.4);

Tailwind

colors: {
  custom: {
    50: '#7f76cc',
    500: '#3941b5',
    950: '#000000',
  },
}

SCSS

$custom: #3941b5;
$custom-light: #7f76cc;
$custom-dark: #000000;

JSON

{
  "hex": "#3941b5",
  "rgb": {
    "r": 57,
    "g": 65,
    "b": 181
  },
  "hsl": {
    "h": 236.129,
    "s": 52.101,
    "l": 46.667
  },
  "oklch": {
    "l": 0.44476,
    "c": 0.1805,
    "h": 273.4
  },
  "luminance": 0.07987
}

Semantic roles & 50–950 ramp

primary

#3941B5

secondary

#C6C284

accent

#D24CDC

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3941B5

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

Preview Lab → · Contrast checker → · Palette generator →