#3940C4#3940C4

#3940C4 is a mid, highly saturated blue. Relative luminance 0.085; OKLCH L 45.7% C 0.201 H 272.9°. Best body text is #FFFFFF at 7.77:1 contrast (WCAG AA passes).

Color values

HEX	#3940C4
RGB	rgb(57, 64, 196)
HSL	hsl(237, 55%, 50%)
HSV	hsv(237, 71%, 77%)
CMYK	cmyk(70.9%, 67.3%, 0%, 23.1%)
CIE-LAB	lab(35.04, 40.73, -69.46)
CIE-LCH	lch(35.04, 80.53, 300.39°)
OKLab	oklab(45.68% 0.0102 -0.2008)
OKLCH	oklch(45.68% 0.201 272.9)
XYZ	xyz(13.4812, 8.5208, 53.1481)
Luminance	0.0852 (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

#3940C4 #C4BD39

analogous

#3986C4 #3940C4 #7739C4

triadic

#3940C4 #C43940 #40C439

tetradic

#3940C4 #C43986 #C4BD39 #39C477

square

#3940C4 #C43986 #C4BD39 #39C477

split-complementary

#3940C4 #C47739 #86C439

monochromatic

#1D2165 #2B3195 #3940C4 #676DD3 #979AE1

Accessibility & contrast

On white

7.77

#3940C4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.70

#3940C4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3940C4

7.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3940C4	#FFFFFF	#000000	##FFFFFF
##3940C4	1.00	7.77	2.70	7.77
#FFFFFF	7.77	1.00	21.00	1.00
#000000	2.70	21.00	1.00	21.00
##FFFFFF	7.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059C8

Deuteranopia (green-blind)

#004CC2

Tritanopia (blue-blind)

#00637D

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #3940c4;
/* rgb */ color: rgb(57, 64, 196);
/* oklch */ color: oklch(45.7% 0.201 272.9);

Tailwind

colors: {
  custom: {
    50: '#8375d7',
    500: '#3940c4',
    950: '#000000',
  },
}

SCSS

$custom: #3940c4;
$custom-light: #8375d7;
$custom-dark: #000000;

JSON

{
  "hex": "#3940c4",
  "rgb": {
    "r": 57,
    "g": 64,
    "b": 196
  },
  "hsl": {
    "h": 236.978,
    "s": 54.941,
    "l": 49.608
  },
  "oklch": {
    "l": 0.45678,
    "c": 0.20105,
    "h": 272.9
  },
  "luminance": 0.08522
}

Semantic roles & 50–950 ramp

primary

#3940C4

secondary

#CCC98D

accent

#D74ADE

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0815

muted

#7D7B83

Preview Lab

Preview with #3940C4

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

Preview Lab → · Contrast checker → · Palette generator →