#3937A8#3937A8

#3937A8 is a dark, vivid blue. Relative luminance 0.064; OKLCH L 41.6% C 0.175 H 276.4°. Best body text is #FFFFFF at 9.19:1 contrast (WCAG AA passes).

Color values

HEX	#3937A8
RGB	rgb(57, 55, 168)
HSL	hsl(241, 51%, 44%)
HSV	hsv(241, 67%, 66%)
CMYK	cmyk(66.1%, 67.3%, 0%, 34.1%)
CIE-LAB	lab(30.47, 36.68, -60.38)
CIE-LCH	lch(30.47, 70.65, 301.28°)
OKLab	oklab(41.59% 0.0194 -0.1742)
OKLCH	oklch(41.59% 0.175 276.4)
XYZ	xyz(10.1191, 6.4285, 37.7458)
Luminance	0.0643 (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

#3937A8 #A6A837

analogous

#376DA8 #3937A8 #7137A8

triadic

#3937A8 #A83937 #37A839

tetradic

#3937A8 #A8376D #A6A837 #37A871

square

#3937A8 #A8376D #A6A837 #37A871

split-complementary

#3937A8 #A87137 #6DA837

monochromatic

#1A194C #29287A #3937A8 #5755C7 #8483D6

Accessibility & contrast

On white

9.19

#3937A8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.29

#3937A8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3937A8

9.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3937A8	#FFFFFF	#000000	##FFFFFF
##3937A8	1.00	9.19	2.29	9.19
#FFFFFF	9.19	1.00	21.00	1.00
#000000	2.29	21.00	1.00	21.00
##FFFFFF	9.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DAC

Deuteranopia (green-blind)

#0043A6

Tritanopia (blue-blind)

#00556B

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #3937a8;
/* rgb */ color: rgb(57, 55, 168);
/* oklch */ color: oklch(41.6% 0.175 276.4);

Tailwind

colors: {
  custom: {
    50: '#7d6ec3',
    500: '#3937a8',
    950: '#000000',
  },
}

SCSS

$custom: #3937a8;
$custom-light: #7d6ec3;
$custom-dark: #000000;

JSON

{
  "hex": "#3937a8",
  "rgb": {
    "r": 57,
    "g": 55,
    "b": 168
  },
  "hsl": {
    "h": 241.062,
    "s": 50.673,
    "l": 43.725
  },
  "oklch": {
    "l": 0.41586,
    "c": 0.17529,
    "h": 276.4
  },
  "luminance": 0.06429
}

Semantic roles & 50–950 ramp

primary

#3937A8

secondary

#BFC07B

accent

#DA4ED8

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3937A8

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

Preview Lab → · Contrast checker → · Palette generator →