#3745BA#3745BA

#3745BA is a mid, vivid blue. Relative luminance 0.086; OKLCH L 45.5% C 0.183 H 271.7°. Best body text is #FFFFFF at 7.71:1 contrast (WCAG AA passes).

Color values

HEX	#3745BA
RGB	rgb(55, 69, 186)
HSL	hsl(234, 54%, 47%)
HSV	hsv(234, 70%, 73%)
CMYK	cmyk(70.4%, 62.9%, 0%, 27.1%)
CIE-LAB	lab(35.23, 33.89, -63.30)
CIE-LCH	lch(35.23, 71.81, 298.17°)
OKLab	oklab(45.51% 0.0054 -0.1828)
OKLCH	oklch(45.51% 0.183 271.7)
XYZ	xyz(12.5636, 8.6124, 47.4451)
Luminance	0.0861 (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

#3745BA #BAAC37

analogous

#3786BA #3745BA #6B37BA

triadic

#3745BA #BA3745 #45BA37

tetradic

#3745BA #BA3786 #BAAC37 #37BA6B

square

#3745BA #BA3786 #BAAC37 #37BA6B

split-complementary

#3745BA #BA6B37 #86BA37

monochromatic

#1B225C #29338B #3745BA #5F6BD0 #8E96DE

Accessibility & contrast

On white

7.71

#3745BA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.72

#3745BA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3745BA

7.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3745BA	#FFFFFF	#000000	##FFFFFF
##3745BA	1.00	7.71	2.72	7.71
#FFFFFF	7.71	1.00	21.00	1.00
#000000	2.72	21.00	1.00	21.00
##FFFFFF	7.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059BE

Deuteranopia (green-blind)

#004DB8

Tritanopia (blue-blind)

#006379

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #3745ba;
/* rgb */ color: rgb(55, 69, 186);
/* oklch */ color: oklch(45.5% 0.183 271.7);

Tailwind

colors: {
  custom: {
    50: '#7f78d0',
    500: '#3745ba',
    950: '#000000',
  },
}

SCSS

$custom: #3745ba;
$custom-light: #7f78d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3745ba",
  "rgb": {
    "r": 55,
    "g": 69,
    "b": 186
  },
  "hsl": {
    "h": 233.588,
    "s": 54.357,
    "l": 47.255
  },
  "oklch": {
    "l": 0.45512,
    "c": 0.18284,
    "h": 271.7
  },
  "luminance": 0.08614
}

Semantic roles & 50–950 ramp

primary

#3745BA

secondary

#C8C185

accent

#CE4ADE

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0B0914

muted

#7C7B82

Preview Lab

Preview with #3745BA

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

Preview Lab → · Contrast checker → · Palette generator →