#3940C7#3940C7

#3940C7 is a mid, highly saturated blue. Relative luminance 0.087; OKLCH L 46.0% C 0.205 H 272.8°. Best body text is #FFFFFF at 7.69:1 contrast (WCAG AA passes).

Color values

HEX	#3940C7
RGB	rgb(57, 64, 199)
HSL	hsl(237, 56%, 50%)
HSV	hsv(237, 71%, 78%)
CMYK	cmyk(71.4%, 67.8%, 0%, 22%)
CIE-LAB	lab(35.32, 41.76, -70.77)
CIE-LCH	lch(35.32, 82.17, 300.54°)
OKLab	oklab(45.96% 0.0098 -0.2046)
OKLCH	oklch(45.96% 0.205 272.8)
XYZ	xyz(13.8261, 8.6588, 54.9644)
Luminance	0.0866 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue Blue

#2242C7

ΔE00 2.21

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3940C7 #C7C039

analogous

#3987C7 #3940C7 #7939C7

triadic

#3940C7 #C73940 #40C739

tetradic

#3940C7 #C73987 #C7C039 #39C779

square

#3940C7 #C73987 #C7C039 #39C779

split-complementary

#3940C7 #C77939 #87C739

monochromatic

#1D2168 #2B3098 #3940C7 #696ED4 #989CE2

Accessibility & contrast

On white

7.69

#3940C7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.73

#3940C7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3940C7

7.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3940C7	#FFFFFF	#000000	##FFFFFF
##3940C7	1.00	7.69	2.73	7.69
#FFFFFF	7.69	1.00	21.00	1.00
#000000	2.73	21.00	1.00	21.00
##FFFFFF	7.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ACB

Deuteranopia (green-blind)

#004CC4

Tritanopia (blue-blind)

#00657E

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #3940c7;
/* rgb */ color: rgb(57, 64, 199);
/* oklch */ color: oklch(46.0% 0.205 272.8);

Tailwind

colors: {
  custom: {
    50: '#8375d9',
    500: '#3940c7',
    950: '#000000',
  },
}

SCSS

$custom: #3940c7;
$custom-light: #8375d9;
$custom-dark: #000000;

JSON

{
  "hex": "#3940c7",
  "rgb": {
    "r": 57,
    "g": 64,
    "b": 199
  },
  "hsl": {
    "h": 237.042,
    "s": 55.906,
    "l": 50.196
  },
  "oklch": {
    "l": 0.4596,
    "c": 0.20483,
    "h": 272.8
  },
  "luminance": 0.0866
}

Semantic roles & 50–950 ramp

primary

#3940C7

secondary

#CECB8E

accent

#D849DF

background

#F8F7FD

surface

#F0EDFB

border

#CBC8D4

text

#0C0815

muted

#7D7B83

Preview Lab

Preview with #3940C7

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

Preview Lab → · Contrast checker → · Palette generator →