#3940A1#3940A1

#3940A1 is a dark, vivid blue. Relative luminance 0.071; OKLCH L 42.6% C 0.155 H 274.6°. Best body text is #FFFFFF at 8.67:1 contrast (WCAG AA passes).

Color values

HEX	#3940A1
RGB	rgb(57, 64, 161)
HSL	hsl(236, 48%, 43%)
HSV	hsv(236, 65%, 63%)
CMYK	cmyk(64.6%, 60.2%, 0%, 36.9%)
CIE-LAB	lab(32.05, 28.53, -53.57)
CIE-LCH	lch(32.05, 60.70, 298.04°)
OKLab	oklab(42.56% 0.0124 -0.1542)
OKLCH	oklch(42.56% 0.155 274.6)
XYZ	xyz(9.9516, 7.1090, 34.5590)
Luminance	0.0711 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3940A1 #A19A39

analogous

#3974A1 #3940A1 #6639A1

triadic

#3940A1 #A13940 #40A139

tetradic

#3940A1 #A13974 #A19A39 #39A166

square

#3940A1 #A13974 #A19A39 #39A166

split-complementary

#3940A1 #A16639 #74A139

monochromatic

#191C47 #292E74 #3940A1 #555CC3 #8287D3

Accessibility & contrast

On white

8.67

#3940A1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.42

#3940A1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3940A1

8.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3940A1	#FFFFFF	#000000	##FFFFFF
##3940A1	1.00	8.67	2.42	8.67
#FFFFFF	8.67	1.00	21.00	1.00
#000000	2.42	21.00	1.00	21.00
##FFFFFF	8.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050A4

Deuteranopia (green-blind)

#00479F

Tritanopia (blue-blind)

#00586A

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #3940a1;
/* rgb */ color: rgb(57, 64, 161);
/* oklch */ color: oklch(42.6% 0.155 274.6);

Tailwind

colors: {
  custom: {
    50: '#7b74be',
    500: '#3940a1',
    950: '#000000',
  },
}

SCSS

$custom: #3940a1;
$custom-light: #7b74be;
$custom-dark: #000000;

JSON

{
  "hex": "#3940a1",
  "rgb": {
    "r": 57,
    "g": 64,
    "b": 161
  },
  "hsl": {
    "h": 235.962,
    "s": 47.706,
    "l": 42.745
  },
  "oklch": {
    "l": 0.42564,
    "c": 0.15469,
    "h": 274.6
  },
  "luminance": 0.0711
}

Semantic roles & 50–950 ramp

primary

#3940A1

secondary

#BCB879

accent

#CE50D7

background

#F8F7FB

surface

#EFEDF7

border

#CAC8D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #3940A1

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

Preview Lab → · Contrast checker → · Palette generator →