#3941BB#3941BB

#3941BB is a mid, vivid blue. Relative luminance 0.082; OKLCH L 45.0% C 0.188 H 273.1°. Best body text is #FFFFFF at 7.93:1 contrast (WCAG AA passes).

Color values

HEX	#3941BB
RGB	rgb(57, 65, 187)
HSL	hsl(236, 53%, 48%)
HSV	hsv(236, 70%, 73%)
CMYK	cmyk(69.5%, 65.2%, 0%, 26.7%)
CIE-LAB	lab(34.47, 37.02, -65.12)
CIE-LCH	lch(34.47, 74.91, 299.62°)
OKLab	oklab(45.02% 0.0103 -0.1881)
OKLCH	oklch(45.02% 0.188 273.1)
XYZ	xyz(12.5443, 8.2371, 47.9329)
Luminance	0.0824 (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

#3941BB #BBB339

analogous

#3982BB #3941BB #7239BB

triadic

#3941BB #BB3941 #41BB39

tetradic

#3941BB #BB3982 #BBB339 #39BB72

square

#3941BB #BB3982 #BBB339 #39BB72

split-complementary

#3941BB #BB7239 #82BB39

monochromatic

#1C205D #2B318C #3941BB #6269CF #9196DD

Accessibility & contrast

On white

7.93

#3941BB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.65

#3941BB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3941BB

7.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3941BB	#FFFFFF	#000000	##FFFFFF
##3941BB	1.00	7.93	2.65	7.93
#FFFFFF	7.93	1.00	21.00	1.00
#000000	2.65	21.00	1.00	21.00
##FFFFFF	7.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057BF

Deuteranopia (green-blind)

#004BB9

Tritanopia (blue-blind)

#006178

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #3941bb;
/* rgb */ color: rgb(57, 65, 187);
/* oklch */ color: oklch(45.0% 0.188 273.1);

Tailwind

colors: {
  custom: {
    50: '#8176d0',
    500: '#3941bb',
    950: '#000000',
  },
}

SCSS

$custom: #3941bb;
$custom-light: #8176d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3941bb",
  "rgb": {
    "r": 57,
    "g": 65,
    "b": 187
  },
  "hsl": {
    "h": 236.308,
    "s": 53.279,
    "l": 47.843
  },
  "oklch": {
    "l": 0.45016,
    "c": 0.18836,
    "h": 273.1
  },
  "luminance": 0.08238
}

Semantic roles & 50–950 ramp

primary

#3941BB

secondary

#C8C487

accent

#D44BDD

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0C0814

muted

#7D7B82

Preview Lab

Preview with #3941BB

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

Preview Lab → · Contrast checker → · Palette generator →