#3937AE#3937AE

#3937AE is a dark, vivid blue. Relative luminance 0.067; OKLCH L 42.1% C 0.183 H 275.9°. Best body text is #FFFFFF at 9.01:1 contrast (WCAG AA passes).

Color values

HEX	#3937AE
RGB	rgb(57, 55, 174)
HSL	hsl(241, 52%, 45%)
HSV	hsv(241, 68%, 68%)
CMYK	cmyk(67.2%, 68.4%, 0%, 31.8%)
CIE-LAB	lab(31.01, 38.71, -63.08)
CIE-LCH	lch(31.01, 74.01, 301.54°)
OKLab	oklab(42.15% 0.0187 -0.1821)
OKLCH	oklch(42.15% 0.183 275.9)
XYZ	xyz(10.6910, 6.6573, 40.7578)
Luminance	0.0666 (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

#3937AE #ACAE37

analogous

#3771AE #3937AE #7437AE

triadic

#3937AE #AE3937 #37AE39

tetradic

#3937AE #AE3771 #ACAE37 #37AE74

square

#3937AE #AE3771 #ACAE37 #37AE74

split-complementary

#3937AE #AE7437 #71AE37

monochromatic

#1B1A51 #2A287F #3937AE #5A58CA #8886D9

Accessibility & contrast

On white

9.01

#3937AE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.33

#3937AE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3937AE

9.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3937AE	#FFFFFF	#000000	##FFFFFF
##3937AE	1.00	9.01	2.33	9.01
#FFFFFF	9.01	1.00	21.00	1.00
#000000	2.33	21.00	1.00	21.00
##FFFFFF	9.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EB2

Deuteranopia (green-blind)

#0044AC

Tritanopia (blue-blind)

#00576E

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #3937ae;
/* rgb */ color: rgb(57, 55, 174);
/* oklch */ color: oklch(42.1% 0.183 275.9);

Tailwind

colors: {
  custom: {
    50: '#7f6fc7',
    500: '#3937ae',
    950: '#000000',
  },
}

SCSS

$custom: #3937ae;
$custom-light: #7f6fc7;
$custom-dark: #000000;

JSON

{
  "hex": "#3937ae",
  "rgb": {
    "r": 57,
    "g": 55,
    "b": 174
  },
  "hsl": {
    "h": 241.008,
    "s": 51.965,
    "l": 44.902
  },
  "oklch": {
    "l": 0.42147,
    "c": 0.18309,
    "h": 275.9
  },
  "luminance": 0.06658
}

Semantic roles & 50–950 ramp

primary

#3937AE

secondary

#C2C37E

accent

#DB4CD9

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3937AE

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

Preview Lab → · Contrast checker → · Palette generator →