#3940BD#3940BD

#3940BD is a mid, vivid blue. Relative luminance 0.082; OKLCH L 45.0% C 0.192 H 273.2°. Best body text is #FFFFFF at 7.95:1 contrast (WCAG AA passes).

Color values

HEX	#3940BD
RGB	rgb(57, 64, 189)
HSL	hsl(237, 54%, 48%)
HSV	hsv(237, 70%, 74%)
CMYK	cmyk(69.8%, 66.1%, 0%, 25.9%)
CIE-LAB	lab(34.42, 38.33, -66.39)
CIE-LCH	lch(34.42, 76.66, 300.00°)
OKLab	oklab(45.03% 0.0108 -0.1918)
OKLCH	oklch(45.03% 0.192 273.2)
XYZ	xyz(12.7030, 8.2096, 49.0494)
Luminance	0.0821 (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

#3940BD #BDB639

analogous

#3982BD #3940BD #7439BD

triadic

#3940BD #BD3940 #40BD39

tetradic

#3940BD #BD3982 #BDB639 #39BD74

square

#3940BD #BD3982 #BDB639 #39BD74

split-complementary

#3940BD #BD7439 #82BD39

monochromatic

#1D205F #2B308E #3940BD #6369D0 #9296DE

Accessibility & contrast

On white

7.95

#3940BD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.64

#3940BD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3940BD

7.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3940BD	#FFFFFF	#000000	##FFFFFF
##3940BD	1.00	7.95	2.64	7.95
#FFFFFF	7.95	1.00	21.00	1.00
#000000	2.64	21.00	1.00	21.00
##FFFFFF	7.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057C1

Deuteranopia (green-blind)

#004BBB

Tritanopia (blue-blind)

#006179

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #3940bd;
/* rgb */ color: rgb(57, 64, 189);
/* oklch */ color: oklch(45.0% 0.192 273.2);

Tailwind

colors: {
  custom: {
    50: '#8175d2',
    500: '#3940bd',
    950: '#000000',
  },
}

SCSS

$custom: #3940bd;
$custom-light: #8175d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3940bd",
  "rgb": {
    "r": 57,
    "g": 64,
    "b": 189
  },
  "hsl": {
    "h": 236.818,
    "s": 53.659,
    "l": 48.235
  },
  "oklch": {
    "l": 0.45029,
    "c": 0.19211,
    "h": 273.2
  },
  "luminance": 0.08211
}

Semantic roles & 50–950 ramp

primary

#3940BD

secondary

#C9C689

accent

#D54BDD

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #3940BD

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

Preview Lab → · Contrast checker → · Palette generator →