#3940A3#3940A3

#3940A3 is a dark, vivid blue. Relative luminance 0.072; OKLCH L 42.7% C 0.157 H 274.5°. Best body text is #FFFFFF at 8.62:1 contrast (WCAG AA passes).

Color values

HEX	#3940A3
RGB	rgb(57, 64, 163)
HSL	hsl(236, 48%, 43%)
HSV	hsv(236, 65%, 64%)
CMYK	cmyk(65%, 60.7%, 0%, 36.1%)
CIE-LAB	lab(32.21, 29.24, -54.52)
CIE-LCH	lch(32.21, 61.87, 298.21°)
OKLab	oklab(42.73% 0.0124 -0.157)
OKLCH	oklch(42.73% 0.157 274.5)
XYZ	xyz(10.1294, 7.1801, 35.4953)
Luminance	0.0718 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3940A3 #A39C39

analogous

#3975A3 #3940A3 #6739A3

triadic

#3940A3 #A33940 #40A339

tetradic

#3940A3 #A33975 #A39C39 #39A367

square

#3940A3 #A33975 #A39C39 #39A367

split-complementary

#3940A3 #A36739 #75A339

monochromatic

#191C48 #292E76 #3940A3 #555DC4 #8388D4

Accessibility & contrast

On white

8.62

#3940A3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.44

#3940A3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3940A3

8.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3940A3	#FFFFFF	#000000	##FFFFFF
##3940A3	1.00	8.62	2.44	8.62
#FFFFFF	8.62	1.00	21.00	1.00
#000000	2.44	21.00	1.00	21.00
##FFFFFF	8.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051A6

Deuteranopia (green-blind)

#0047A1

Tritanopia (blue-blind)

#00586B

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #3940a3;
/* rgb */ color: rgb(57, 64, 163);
/* oklch */ color: oklch(42.7% 0.157 274.5);

Tailwind

colors: {
  custom: {
    50: '#7c75bf',
    500: '#3940a3',
    950: '#000000',
  },
}

SCSS

$custom: #3940a3;
$custom-light: #7c75bf;
$custom-dark: #000000;

JSON

{
  "hex": "#3940a3",
  "rgb": {
    "r": 57,
    "g": 64,
    "b": 163
  },
  "hsl": {
    "h": 236.038,
    "s": 48.182,
    "l": 43.137
  },
  "oklch": {
    "l": 0.42732,
    "c": 0.15746,
    "h": 274.5
  },
  "luminance": 0.07181
}

Semantic roles & 50–950 ramp

primary

#3940A3

secondary

#BDB97A

accent

#CF50D8

background

#F8F7FB

surface

#EFEDF7

border

#CAC8D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #3940A3

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

Preview Lab → · Contrast checker → · Palette generator →