#3940A5#3940A5

#3940A5 is a dark, vivid blue. Relative luminance 0.073; OKLCH L 42.9% C 0.160 H 274.4°. Best body text is #FFFFFF at 8.57:1 contrast (WCAG AA passes).

Color values

HEX	#3940A5
RGB	rgb(57, 64, 165)
HSL	hsl(236, 49%, 44%)
HSV	hsv(236, 65%, 65%)
CMYK	cmyk(65.5%, 61.2%, 0%, 35.3%)
CIE-LAB	lab(32.37, 29.95, -55.46)
CIE-LCH	lch(32.37, 63.03, 298.37°)
OKLab	oklab(42.9% 0.0123 -0.1597)
OKLCH	oklch(42.9% 0.16 274.4)
XYZ	xyz(10.3100, 7.2524, 36.4465)
Luminance	0.0725 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3940A5 #A59E39

analogous

#3976A5 #3940A5 #6839A5

triadic

#3940A5 #A53940 #40A539

tetradic

#3940A5 #A53976 #A59E39 #39A568

square

#3940A5 #A53976 #A59E39 #39A568

split-complementary

#3940A5 #A56839 #76A539

monochromatic

#1A1D4A #292E78 #3940A5 #565EC5 #8489D4

Accessibility & contrast

On white

8.57

#3940A5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.45

#3940A5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3940A5

8.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3940A5	#FFFFFF	#000000	##FFFFFF
##3940A5	1.00	8.57	2.45	8.57
#FFFFFF	8.57	1.00	21.00	1.00
#000000	2.45	21.00	1.00	21.00
##FFFFFF	8.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051A8

Deuteranopia (green-blind)

#0047A3

Tritanopia (blue-blind)

#00596C

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #3940a5;
/* rgb */ color: rgb(57, 64, 165);
/* oklch */ color: oklch(42.9% 0.160 274.4);

Tailwind

colors: {
  custom: {
    50: '#7c75c1',
    500: '#3940a5',
    950: '#000000',
  },
}

SCSS

$custom: #3940a5;
$custom-light: #7c75c1;
$custom-dark: #000000;

JSON

{
  "hex": "#3940a5",
  "rgb": {
    "r": 57,
    "g": 64,
    "b": 165
  },
  "hsl": {
    "h": 236.111,
    "s": 48.649,
    "l": 43.529
  },
  "oklch": {
    "l": 0.42901,
    "c": 0.16021,
    "h": 274.4
  },
  "luminance": 0.07253
}

Semantic roles & 50–950 ramp

primary

#3940A5

secondary

#BEBA7B

accent

#CF50D8

background

#F8F7FB

surface

#EFEDF7

border

#CAC8D0

text

#0B0812

muted

#7C7B81

Preview Lab

Preview with #3940A5

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

Preview Lab → · Contrast checker → · Palette generator →