#3756AD#3756AD

#3756AD is a mid, vivid blue. Relative luminance 0.105; OKLCH L 47.8% C 0.144 H 266.3°. Best body text is #FFFFFF at 6.78:1 contrast (WCAG AA passes).

Color values

HEX	#3756AD
RGB	rgb(55, 86, 173)
HSL	hsl(224, 52%, 45%)
HSV	hsv(224, 68%, 68%)
CMYK	cmyk(68.2%, 50.3%, 0%, 32.2%)
CIE-LAB	lab(38.70, 18.12, -49.99)
CIE-LCH	lch(38.70, 53.18, 289.93°)
OKLab	oklab(47.8% -0.0093 -0.1434)
OKLCH	oklch(47.8% 0.144 266.3)
XYZ	xyz(12.4435, 10.4837, 40.8948)
Luminance	0.1048 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3756AD #AD8E37

analogous

#3791AD #3756AD #5337AD

triadic

#3756AD #AD3756 #56AD37

tetradic

#3756AD #AD3791 #AD8E37 #37AD53

square

#3756AD #AD3791 #AD8E37 #37AD53

split-complementary

#3756AD #AD5337 #91AD37

monochromatic

#192850 #283F7F #3756AD #5775CA #869CD8

Accessibility & contrast

On white

6.78

#3756AD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.10

#3756AD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3756AD

6.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3756AD	#FFFFFF	#000000	##FFFFFF
##3756AD	1.00	6.78	3.10	6.78
#FFFFFF	6.78	1.00	21.00	1.00
#000000	3.10	21.00	1.00	21.00
##FFFFFF	6.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2561B0

Deuteranopia (green-blind)

#0056AB

Tritanopia (blue-blind)

#006A79

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #3756ad;
/* rgb */ color: rgb(55, 86, 173);
/* oklch */ color: oklch(47.8% 0.144 266.3);

Tailwind

colors: {
  custom: {
    50: '#7b85c6',
    500: '#3756ad',
    950: '#000000',
  },
}

SCSS

$custom: #3756ad;
$custom-light: #7b85c6;
$custom-dark: #000000;

JSON

{
  "hex": "#3756ad",
  "rgb": {
    "r": 55,
    "g": 86,
    "b": 173
  },
  "hsl": {
    "h": 224.237,
    "s": 51.754,
    "l": 44.706
  },
  "oklch": {
    "l": 0.47801,
    "c": 0.14372,
    "h": 266.3
  },
  "luminance": 0.10485
}

Semantic roles & 50–950 ramp

primary

#3756AD

secondary

#C2B07D

accent

#B64DDB

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #3756AD

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

Preview Lab → · Contrast checker → · Palette generator →