#3940A4#3940A4

#3940A4 is a dark, vivid blue. Relative luminance 0.072; OKLCH L 42.8% C 0.159 H 274.5°. Best body text is #FFFFFF at 8.59:1 contrast (WCAG AA passes).

Color values

HEX	#3940A4
RGB	rgb(57, 64, 164)
HSL	hsl(236, 48%, 43%)
HSV	hsv(236, 65%, 64%)
CMYK	cmyk(65.2%, 61%, 0%, 35.7%)
CIE-LAB	lab(32.29, 29.59, -54.99)
CIE-LCH	lch(32.29, 62.45, 298.29°)
OKLab	oklab(42.82% 0.0123 -0.1584)
OKLCH	oklch(42.82% 0.159 274.5)
XYZ	xyz(10.2194, 7.2161, 35.9691)
Luminance	0.0722 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3940A4 #A49D39

analogous

#3975A4 #3940A4 #6739A4

triadic

#3940A4 #A43940 #40A439

tetradic

#3940A4 #A43975 #A49D39 #39A467

square

#3940A4 #A43975 #A49D39 #39A467

split-complementary

#3940A4 #A46739 #75A439

monochromatic

#191D49 #292E77 #3940A4 #565DC4 #8389D4

Accessibility & contrast

On white

8.59

#3940A4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.44

#3940A4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3940A4

8.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3940A4	#FFFFFF	#000000	##FFFFFF
##3940A4	1.00	8.59	2.44	8.59
#FFFFFF	8.59	1.00	21.00	1.00
#000000	2.44	21.00	1.00	21.00
##FFFFFF	8.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051A7

Deuteranopia (green-blind)

#0047A2

Tritanopia (blue-blind)

#00596B

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #3940a4;
/* rgb */ color: rgb(57, 64, 164);
/* oklch */ color: oklch(42.8% 0.159 274.5);

Tailwind

colors: {
  custom: {
    50: '#7c75c0',
    500: '#3940a4',
    950: '#000000',
  },
}

SCSS

$custom: #3940a4;
$custom-light: #7c75c0;
$custom-dark: #000000;

JSON

{
  "hex": "#3940a4",
  "rgb": {
    "r": 57,
    "g": 64,
    "b": 164
  },
  "hsl": {
    "h": 236.075,
    "s": 48.416,
    "l": 43.333
  },
  "oklch": {
    "l": 0.42816,
    "c": 0.15884,
    "h": 274.5
  },
  "luminance": 0.07217
}

Semantic roles & 50–950 ramp

primary

#3940A4

secondary

#BEB97B

accent

#CF50D8

background

#F8F7FB

surface

#EFEDF7

border

#CAC8D0

text

#0B0812

muted

#7C7B81

Preview Lab

Preview with #3940A4

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

Preview Lab → · Contrast checker → · Palette generator →