#3940BF#3940BF

#3940BF is a mid, vivid blue. Relative luminance 0.083; OKLCH L 45.2% C 0.195 H 273.1°. Best body text is #FFFFFF at 7.90:1 contrast (WCAG AA passes).

Color values

HEX	#3940BF
RGB	rgb(57, 64, 191)
HSL	hsl(237, 54%, 49%)
HSV	hsv(237, 70%, 75%)
CMYK	cmyk(70.2%, 66.5%, 0%, 25.1%)
CIE-LAB	lab(34.59, 39.02, -67.28)
CIE-LCH	lch(34.59, 77.77, 300.11°)
OKLab	oklab(45.21% 0.0107 -0.1944)
OKLCH	oklch(45.21% 0.195 273.1)
XYZ	xyz(12.9216, 8.2970, 50.2006)
Luminance	0.0830 (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

#3940BF #BFB839

analogous

#3983BF #3940BF #7539BF

triadic

#3940BF #BF3940 #40BF39

tetradic

#3940BF #BF3983 #BFB839 #39BF75

square

#3940BF #BF3983 #BFB839 #39BF75

split-complementary

#3940BF #BF7539 #83BF39

monochromatic

#1D2061 #2B3090 #3940BF #646AD1 #9397DF

Accessibility & contrast

On white

7.90

#3940BF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#3940BF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3940BF

7.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3940BF	#FFFFFF	#000000	##FFFFFF
##3940BF	1.00	7.90	2.66	7.90
#FFFFFF	7.90	1.00	21.00	1.00
#000000	2.66	21.00	1.00	21.00
##FFFFFF	7.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058C3

Deuteranopia (green-blind)

#004BBD

Tritanopia (blue-blind)

#00627A

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #3940bf;
/* rgb */ color: rgb(57, 64, 191);
/* oklch */ color: oklch(45.2% 0.195 273.1);

Tailwind

colors: {
  custom: {
    50: '#8275d3',
    500: '#3940bf',
    950: '#000000',
  },
}

SCSS

$custom: #3940bf;
$custom-light: #8275d3;
$custom-dark: #000000;

JSON

{
  "hex": "#3940bf",
  "rgb": {
    "r": 57,
    "g": 64,
    "b": 191
  },
  "hsl": {
    "h": 236.866,
    "s": 54.032,
    "l": 48.627
  },
  "oklch": {
    "l": 0.45213,
    "c": 0.19467,
    "h": 273.1
  },
  "luminance": 0.08298
}

Semantic roles & 50–950 ramp

primary

#3940BF

secondary

#CAC78A

accent

#D64ADD

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #3940BF

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

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