#3756B2#3756B2

#3756B2 is a mid, vivid blue. Relative luminance 0.107; OKLCH L 48.2% C 0.151 H 266.7°. Best body text is #FFFFFF at 6.70:1 contrast (WCAG AA passes).

Color values

HEX	#3756B2
RGB	rgb(55, 86, 178)
HSL	hsl(225, 53%, 46%)
HSV	hsv(225, 69%, 70%)
CMYK	cmyk(69.1%, 51.7%, 0%, 30.2%)
CIE-LAB	lab(39.04, 19.96, -52.40)
CIE-LCH	lch(39.04, 56.07, 290.86°)
OKLab	oklab(48.17% -0.0087 -0.1505)
OKLCH	oklch(48.17% 0.151 266.7)
XYZ	xyz(12.9364, 10.6809, 43.4907)
Luminance	0.1068 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3756B2 #B29337

analogous

#3793B2 #3756B2 #5537B2

triadic

#3756B2 #B23756 #56B237

tetradic

#3756B2 #B23793 #B29337 #37B255

square

#3756B2 #B23793 #B29337 #37B255

split-complementary

#3756B2 #B25537 #93B237

monochromatic

#1A2954 #293F83 #3756B2 #5A77CC #899DDB

Accessibility & contrast

On white

6.70

#3756B2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.14

#3756B2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3756B2

6.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3756B2	#FFFFFF	#000000	##FFFFFF
##3756B2	1.00	6.70	3.14	6.70
#FFFFFF	6.70	1.00	21.00	1.00
#000000	3.14	21.00	1.00	21.00
##FFFFFF	6.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D62B5

Deuteranopia (green-blind)

#0057B0

Tritanopia (blue-blind)

#006C7C

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #3756b2;
/* rgb */ color: rgb(55, 86, 178);
/* oklch */ color: oklch(48.2% 0.151 266.7);

Tailwind

colors: {
  custom: {
    50: '#7c85ca',
    500: '#3756b2',
    950: '#000000',
  },
}

SCSS

$custom: #3756b2;
$custom-light: #7c85ca;
$custom-dark: #000000;

JSON

{
  "hex": "#3756b2",
  "rgb": {
    "r": 55,
    "g": 86,
    "b": 178
  },
  "hsl": {
    "h": 224.878,
    "s": 52.79,
    "l": 45.686
  },
  "oklch": {
    "l": 0.48169,
    "c": 0.15075,
    "h": 266.7
  },
  "luminance": 0.10682
}

Semantic roles & 50–950 ramp

primary

#3756B2

secondary

#C5B380

accent

#B84CDC

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #3756B2

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

Preview Lab → · Contrast checker → · Palette generator →