#3745BE#3745BE

#3745BE is a mid, vivid blue. Relative luminance 0.088; OKLCH L 45.9% C 0.188 H 271.6°. Best body text is #FFFFFF at 7.62:1 contrast (WCAG AA passes).

Color values

HEX	#3745BE
RGB	rgb(55, 69, 190)
HSL	hsl(234, 55%, 48%)
HSV	hsv(234, 71%, 75%)
CMYK	cmyk(71.1%, 63.7%, 0%, 25.5%)
CIE-LAB	lab(35.57, 35.31, -65.10)
CIE-LCH	lch(35.57, 74.06, 298.48°)
OKLab	oklab(45.87% 0.0052 -0.188)
OKLCH	oklch(45.87% 0.188 271.6)
XYZ	xyz(12.9948, 8.7849, 49.7160)
Luminance	0.0879 (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

#3745BE #BEB037

analogous

#3788BE #3745BE #6D37BE

triadic

#3745BE #BE3745 #45BE37

tetradic

#3745BE #BE3788 #BEB037 #37BE6D

square

#3745BE #BE3788 #BEB037 #37BE6D

split-complementary

#3745BE #BE6D37 #88BE37

monochromatic

#1C235F #29348F #3745BE #616DD1 #9099DF

Accessibility & contrast

On white

7.62

#3745BE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.76

#3745BE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3745BE

7.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3745BE	#FFFFFF	#000000	##FFFFFF
##3745BE	1.00	7.62	2.76	7.62
#FFFFFF	7.62	1.00	21.00	1.00
#000000	2.76	21.00	1.00	21.00
##FFFFFF	7.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005AC2

Deuteranopia (green-blind)

#004DBC

Tritanopia (blue-blind)

#00647B

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #3745be;
/* rgb */ color: rgb(55, 69, 190);
/* oklch */ color: oklch(45.9% 0.188 271.6);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#3745be",
  "rgb": {
    "r": 55,
    "g": 69,
    "b": 190
  },
  "hsl": {
    "h": 233.778,
    "s": 55.102,
    "l": 48.039
  },
  "oklch": {
    "l": 0.45866,
    "c": 0.1881,
    "h": 271.6
  },
  "luminance": 0.08786
}

Semantic roles & 50–950 ramp

primary

#3745BE

secondary

#CAC387

accent

#CF49DE

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0914

muted

#7D7B83

Preview Lab

Preview with #3745BE

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

Preview Lab → · Contrast checker → · Palette generator →