#3937A7#3937A7

#3937A7 is a dark, vivid blue. Relative luminance 0.064; OKLCH L 41.5% C 0.174 H 276.5°. Best body text is #FFFFFF at 9.22:1 contrast (WCAG AA passes).

Color values

HEX	#3937A7
RGB	rgb(57, 55, 167)
HSL	hsl(241, 50%, 44%)
HSV	hsv(241, 67%, 65%)
CMYK	cmyk(65.9%, 67.1%, 0%, 34.5%)
CIE-LAB	lab(30.38, 36.34, -59.92)
CIE-LCH	lch(30.38, 70.08, 301.23°)
OKLab	oklab(41.49% 0.0196 -0.1729)
OKLCH	oklch(41.49% 0.174 276.5)
XYZ	xyz(10.0263, 6.3914, 37.2570)
Luminance	0.0639 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 5.82

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3937A7 #A5A737

analogous

#376DA7 #3937A7 #7137A7

triadic

#3937A7 #A73937 #37A739

tetradic

#3937A7 #A7376D #A5A737 #37A771

square

#3937A7 #A7376D #A5A737 #37A771

split-complementary

#3937A7 #A77137 #6DA737

monochromatic

#1A194B #292879 #3937A7 #5654C7 #8482D6

Accessibility & contrast

On white

9.22

#3937A7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.28

#3937A7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3937A7

9.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3937A7	#FFFFFF	#000000	##FFFFFF
##3937A7	1.00	9.22	2.28	9.22
#FFFFFF	9.22	1.00	21.00	1.00
#000000	2.28	21.00	1.00	21.00
##FFFFFF	9.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CAA

Deuteranopia (green-blind)

#0043A5

Tritanopia (blue-blind)

#00546A

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #3937a7;
/* rgb */ color: rgb(57, 55, 167);
/* oklch */ color: oklch(41.5% 0.174 276.5);

Tailwind

colors: {
  custom: {
    50: '#7d6ec2',
    500: '#3937a7',
    950: '#000000',
  },
}

SCSS

$custom: #3937a7;
$custom-light: #7d6ec2;
$custom-dark: #000000;

JSON

{
  "hex": "#3937a7",
  "rgb": {
    "r": 57,
    "g": 55,
    "b": 167
  },
  "hsl": {
    "h": 241.071,
    "s": 50.45,
    "l": 43.529
  },
  "oklch": {
    "l": 0.41494,
    "c": 0.17398,
    "h": 276.5
  },
  "luminance": 0.06392
}

Semantic roles & 50–950 ramp

primary

#3937A7

secondary

#BEC07A

accent

#DA4ED7

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0712

muted

#7C7A81

Preview Lab

Preview with #3937A7

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

Preview Lab → · Contrast checker → · Palette generator →