#3745BF#3745BF

#3745BF is a mid, vivid blue. Relative luminance 0.088; OKLCH L 46.0% C 0.189 H 271.5°. Best body text is #FFFFFF at 7.59:1 contrast (WCAG AA passes).

Color values

HEX	#3745BF
RGB	rgb(55, 69, 191)
HSL	hsl(234, 55%, 48%)
HSV	hsv(234, 71%, 75%)
CMYK	cmyk(71.2%, 63.9%, 0%, 25.1%)
CIE-LAB	lab(35.65, 35.66, -65.55)
CIE-LCH	lch(35.65, 74.62, 298.55°)
OKLab	oklab(45.96% 0.0051 -0.1893)
OKLCH	oklch(45.96% 0.189 271.5)
XYZ	xyz(13.1045, 8.8287, 50.2936)
Luminance	0.0883 (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

#3745BF #BFB137

analogous

#3789BF #3745BF #6D37BF

triadic

#3745BF #BF3745 #45BF37

tetradic

#3745BF #BF3789 #BFB137 #37BF6D

square

#3745BF #BF3789 #BFB137 #37BF6D

split-complementary

#3745BF #BF6D37 #89BF37

monochromatic

#1C2360 #29348F #3745BF #626DD2 #9199DF

Accessibility & contrast

On white

7.59

#3745BF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.77

#3745BF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3745BF

7.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3745BF	#FFFFFF	#000000	##FFFFFF
##3745BF	1.00	7.59	2.77	7.59
#FFFFFF	7.59	1.00	21.00	1.00
#000000	2.77	21.00	1.00	21.00
##FFFFFF	7.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005AC3

Deuteranopia (green-blind)

#004EBD

Tritanopia (blue-blind)

#00657B

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #3745bf;
/* rgb */ color: rgb(55, 69, 191);
/* oklch */ color: oklch(46.0% 0.189 271.5);

Tailwind

colors: {
  custom: {
    50: '#8078d3',
    500: '#3745bf',
    950: '#000000',
  },
}

SCSS

$custom: #3745bf;
$custom-light: #8078d3;
$custom-dark: #000000;

JSON

{
  "hex": "#3745bf",
  "rgb": {
    "r": 55,
    "g": 69,
    "b": 191
  },
  "hsl": {
    "h": 233.824,
    "s": 55.285,
    "l": 48.235
  },
  "oklch": {
    "l": 0.45956,
    "c": 0.18941,
    "h": 271.5
  },
  "luminance": 0.0883
}

Semantic roles & 50–950 ramp

primary

#3745BF

secondary

#CAC388

accent

#CF49DF

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0914

muted

#7D7B83

Preview Lab

Preview with #3745BF

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

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