#3745C0#3745C0

#3745C0 is a mid, vivid blue. Relative luminance 0.089; OKLCH L 46.0% C 0.191 H 271.5°. Best body text is #FFFFFF at 7.57:1 contrast (WCAG AA passes).

Color values

HEX	#3745C0
RGB	rgb(55, 69, 192)
HSL	hsl(234, 55%, 48%)
HSV	hsv(234, 71%, 75%)
CMYK	cmyk(71.4%, 64.1%, 0%, 24.7%)
CIE-LAB	lab(35.74, 36.02, -65.99)
CIE-LCH	lch(35.74, 75.18, 298.62°)
OKLab	oklab(46.05% 0.0051 -0.1906)
OKLCH	oklch(46.05% 0.191 271.5)
XYZ	xyz(13.2149, 8.8729, 50.8752)
Luminance	0.0887 (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

#3745C0 #C0B237

analogous

#3789C0 #3745C0 #6D37C0

triadic

#3745C0 #C03745 #45C037

tetradic

#3745C0 #C03789 #C0B237 #37C06D

square

#3745C0 #C03789 #C0B237 #37C06D

split-complementary

#3745C0 #C06D37 #89C037

monochromatic

#1C2361 #293490 #3745C0 #626ED2 #929AE0

Accessibility & contrast

On white

7.57

#3745C0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.77

#3745C0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3745C0

7.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3745C0	#FFFFFF	#000000	##FFFFFF
##3745C0	1.00	7.57	2.77	7.57
#FFFFFF	7.57	1.00	21.00	1.00
#000000	2.77	21.00	1.00	21.00
##FFFFFF	7.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BC4

Deuteranopia (green-blind)

#004EBE

Tritanopia (blue-blind)

#00657C

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #3745c0;
/* rgb */ color: rgb(55, 69, 192);
/* oklch */ color: oklch(46.0% 0.191 271.5);

Tailwind

colors: {
  custom: {
    50: '#8179d4',
    500: '#3745c0',
    950: '#000000',
  },
}

SCSS

$custom: #3745c0;
$custom-light: #8179d4;
$custom-dark: #000000;

JSON

{
  "hex": "#3745c0",
  "rgb": {
    "r": 55,
    "g": 69,
    "b": 192
  },
  "hsl": {
    "h": 233.869,
    "s": 55.466,
    "l": 48.431
  },
  "oklch": {
    "l": 0.46045,
    "c": 0.19071,
    "h": 271.5
  },
  "luminance": 0.08874
}

Semantic roles & 50–950 ramp

primary

#3745C0

secondary

#CBC488

accent

#CF49DF

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0914

muted

#7D7B83

Preview Lab

Preview with #3745C0

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

Preview Lab → · Contrast checker → · Palette generator →