#3940CC#3940CC

#3940CC is a mid, highly saturated blue. Relative luminance 0.089; OKLCH L 46.4% C 0.211 H 272.5°. Best body text is #FFFFFF at 7.56:1 contrast (WCAG AA passes).

Color values

HEX	#3940CC
RGB	rgb(57, 64, 204)
HSL	hsl(237, 59%, 51%)
HSV	hsv(237, 72%, 80%)
CMYK	cmyk(72.1%, 68.6%, 0%, 20%)
CIE-LAB	lab(35.78, 43.46, -72.92)
CIE-LCH	lch(35.78, 84.88, 300.79°)
OKLab	oklab(46.43% 0.0093 -0.2109)
OKLCH	oklch(46.43% 0.211 272.5)
XYZ	xyz(14.4162, 8.8948, 58.0722)
Luminance	0.0890 (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

#3940CC #CCC539

analogous

#3989CC #3940CC #7B39CC

triadic

#3940CC #CC3940 #40CC39

tetradic

#3940CC #CC3989 #CCC539 #39CC7B

square

#3940CC #CC3989 #CCC539 #39CC7B

split-complementary

#3940CC #CC7B39 #89CC39

monochromatic

#1C206E #292F9F #3940CC #6A6FD9 #9A9EE5

Accessibility & contrast

On white

7.56

#3940CC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.78

#3940CC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3940CC

7.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3940CC	#FFFFFF	#000000	##FFFFFF
##3940CC	1.00	7.56	2.78	7.56
#FFFFFF	7.56	1.00	21.00	1.00
#000000	2.78	21.00	1.00	21.00
##FFFFFF	7.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BD0

Deuteranopia (green-blind)

#004DC9

Tritanopia (blue-blind)

#006681

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #3940cc;
/* rgb */ color: rgb(57, 64, 204);
/* oklch */ color: oklch(46.4% 0.211 272.5);

Tailwind

colors: {
  custom: {
    50: '#8475dd',
    500: '#3940cc',
    950: '#000000',
  },
}

SCSS

$custom: #3940cc;
$custom-light: #8475dd;
$custom-dark: #000000;

JSON

{
  "hex": "#3940cc",
  "rgb": {
    "r": 57,
    "g": 64,
    "b": 204
  },
  "hsl": {
    "h": 237.143,
    "s": 59.036,
    "l": 51.176
  },
  "oklch": {
    "l": 0.46435,
    "c": 0.21107,
    "h": 272.5
  },
  "luminance": 0.08896
}

Semantic roles & 50–950 ramp

primary

#3940CC

secondary

#D1CE90

accent

#DB46E2

background

#F8F7FD

surface

#F0EDFB

border

#CBC8D4

text

#0D0815

muted

#7D7B83

Preview Lab

Preview with #3940CC

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

Preview Lab → · Contrast checker → · Palette generator →