#3756AF#3756AF

#3756AF is a mid, vivid blue. Relative luminance 0.106; OKLCH L 47.9% C 0.147 H 266.5°. Best body text is #FFFFFF at 6.75:1 contrast (WCAG AA passes).

Color values

HEX	#3756AF
RGB	rgb(55, 86, 175)
HSL	hsl(225, 52%, 45%)
HSV	hsv(225, 69%, 69%)
CMYK	cmyk(68.6%, 50.9%, 0%, 31.4%)
CIE-LAB	lab(38.83, 18.86, -50.96)
CIE-LCH	lch(38.83, 54.34, 290.31°)
OKLab	oklab(47.95% -0.0091 -0.1463)
OKLCH	oklch(47.95% 0.147 266.5)
XYZ	xyz(12.6385, 10.5617, 41.9217)
Luminance	0.1056 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3756AF #AF9037

analogous

#3792AF #3756AF #5437AF

triadic

#3756AF #AF3756 #56AF37

tetradic

#3756AF #AF3792 #AF9037 #37AF54

square

#3756AF #AF3792 #AF9037 #37AF54

split-complementary

#3756AF #AF5437 #92AF37

monochromatic

#1A2852 #283F80 #3756AF #5976CB #879CD9

Accessibility & contrast

On white

6.75

#3756AF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.11

#3756AF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3756AF

6.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3756AF	#FFFFFF	#000000	##FFFFFF
##3756AF	1.00	6.75	3.11	6.75
#FFFFFF	6.75	1.00	21.00	1.00
#000000	3.11	21.00	1.00	21.00
##FFFFFF	6.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2261B2

Deuteranopia (green-blind)

#0056AD

Tritanopia (blue-blind)

#006B7A

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #3756af;
/* rgb */ color: rgb(55, 86, 175);
/* oklch */ color: oklch(47.9% 0.147 266.5);

Tailwind

colors: {
  custom: {
    50: '#7c85c7',
    500: '#3756af',
    950: '#000000',
  },
}

SCSS

$custom: #3756af;
$custom-light: #7c85c7;
$custom-dark: #000000;

JSON

{
  "hex": "#3756af",
  "rgb": {
    "r": 55,
    "g": 86,
    "b": 175
  },
  "hsl": {
    "h": 224.5,
    "s": 52.174,
    "l": 45.098
  },
  "oklch": {
    "l": 0.47947,
    "c": 0.14654,
    "h": 266.5
  },
  "luminance": 0.10563
}

Semantic roles & 50–950 ramp

primary

#3756AF

secondary

#C3B27F

accent

#B74CDC

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #3756AF

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

Preview Lab → · Contrast checker → · Palette generator →