#3756BA#3756BA

#3756BA is a mid, vivid blue. Relative luminance 0.110; OKLCH L 48.8% C 0.162 H 267.2°. Best body text is #FFFFFF at 6.56:1 contrast (WCAG AA passes).

Color values

HEX	#3756BA
RGB	rgb(55, 86, 186)
HSL	hsl(226, 54%, 47%)
HSV	hsv(226, 70%, 73%)
CMYK	cmyk(70.4%, 53.8%, 0%, 27.1%)
CIE-LAB	lab(39.60, 22.91, -56.19)
CIE-LCH	lch(39.60, 60.68, 292.18°)
OKLab	oklab(48.77% -0.008 -0.1616)
OKLCH	oklch(48.77% 0.162 267.2)
XYZ	xyz(13.7632, 11.0116, 47.8450)
Luminance	0.1101 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3756BA #BA9B37

analogous

#3797BA #3756BA #5A37BA

triadic

#3756BA #BA3756 #56BA37

tetradic

#3756BA #BA3797 #BA9B37 #37BA5A

square

#3756BA #BA3797 #BA9B37 #37BA5A

split-complementary

#3756BA #BA5A37 #97BA37

monochromatic

#1B2A5C #29408B #3756BA #5F79D0 #8EA1DE

Accessibility & contrast

On white

6.56

#3756BA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.20

#3756BA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3756BA

6.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3756BA	#FFFFFF	#000000	##FFFFFF
##3756BA	1.00	6.56	3.20	6.56
#FFFFFF	6.56	1.00	21.00	1.00
#000000	3.20	21.00	1.00	21.00
##FFFFFF	6.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0A64BE

Deuteranopia (green-blind)

#0058B8

Tritanopia (blue-blind)

#006E7F

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #3756ba;
/* rgb */ color: rgb(55, 86, 186);
/* oklch */ color: oklch(48.8% 0.162 267.2);

Tailwind

colors: {
  custom: {
    50: '#7e85cf',
    500: '#3756ba',
    950: '#000000',
  },
}

SCSS

$custom: #3756ba;
$custom-light: #7e85cf;
$custom-dark: #000000;

JSON

{
  "hex": "#3756ba",
  "rgb": {
    "r": 55,
    "g": 86,
    "b": 186
  },
  "hsl": {
    "h": 225.802,
    "s": 54.357,
    "l": 47.255
  },
  "oklch": {
    "l": 0.48773,
    "c": 0.16185,
    "h": 267.2
  },
  "luminance": 0.11013
}

Semantic roles & 50–950 ramp

primary

#3756BA

secondary

#C8B885

accent

#BB4ADE

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #3756BA

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

Preview Lab → · Contrast checker → · Palette generator →