#3942CC#3942CC

#3942CC is a mid, highly saturated blue. Relative luminance 0.091; OKLCH L 46.8% C 0.209 H 272.2°. Best body text is #FFFFFF at 7.43:1 contrast (WCAG AA passes).

Color values

HEX	#3942CC
RGB	rgb(57, 66, 204)
HSL	hsl(236, 59%, 51%)
HSV	hsv(236, 72%, 80%)
CMYK	cmyk(72.1%, 67.6%, 0%, 20%)
CIE-LAB	lab(36.22, 42.26, -72.19)
CIE-LCH	lch(36.22, 83.65, 300.34°)
OKLab	oklab(46.75% 0.0081 -0.2087)
OKLCH	oklch(46.75% 0.209 272.2)
XYZ	xyz(14.5310, 9.1244, 58.1104)
Luminance	0.0913 (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

#3942CC #CCC339

analogous

#398BCC #3942CC #7939CC

triadic

#3942CC #CC3942 #42CC39

tetradic

#3942CC #CC398B #CCC339 #39CC79

square

#3942CC #CC398B #CCC339 #39CC79

split-complementary

#3942CC #CC7939 #8BCC39

monochromatic

#1C216E #29309F #3942CC #6A70D9 #9A9FE5

Accessibility & contrast

On white

7.43

#3942CC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.83

#3942CC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3942CC

7.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3942CC	#FFFFFF	#000000	##FFFFFF
##3942CC	1.00	7.43	2.83	7.43
#FFFFFF	7.43	1.00	21.00	1.00
#000000	2.83	21.00	1.00	21.00
##FFFFFF	7.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CD0

Deuteranopia (green-blind)

#004EC9

Tritanopia (blue-blind)

#006781

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #3942cc;
/* rgb */ color: rgb(57, 66, 204);
/* oklch */ color: oklch(46.8% 0.209 272.2);

Tailwind

colors: {
  custom: {
    50: '#8477dd',
    500: '#3942cc',
    950: '#000000',
  },
}

SCSS

$custom: #3942cc;
$custom-light: #8477dd;
$custom-dark: #000000;

JSON

{
  "hex": "#3942cc",
  "rgb": {
    "r": 57,
    "g": 66,
    "b": 204
  },
  "hsl": {
    "h": 236.327,
    "s": 59.036,
    "l": 51.176
  },
  "oklch": {
    "l": 0.46754,
    "c": 0.20891,
    "h": 272.2
  },
  "luminance": 0.09126
}

Semantic roles & 50–950 ramp

primary

#3942CC

secondary

#D1CD90

accent

#D946E2

background

#F8F7FD

surface

#F0EDFB

border

#CBC8D4

text

#0D0815

muted

#7D7B83

Preview Lab

Preview with #3942CC

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

Preview Lab → · Contrast checker → · Palette generator →