#3756BD#3756BD

#3756BD is a mid, vivid blue. Relative luminance 0.111; OKLCH L 49.0% C 0.166 H 267.3°. Best body text is #FFFFFF at 6.50:1 contrast (WCAG AA passes).

Color values

HEX	#3756BD
RGB	rgb(55, 86, 189)
HSL	hsl(226, 55%, 48%)
HSV	hsv(226, 71%, 74%)
CMYK	cmyk(70.9%, 54.5%, 0%, 25.9%)
CIE-LAB	lab(39.82, 24.01, -57.59)
CIE-LCH	lch(39.82, 62.40, 292.63°)
OKLab	oklab(49% -0.0078 -0.1658)
OKLCH	oklch(49% 0.166 267.3)
XYZ	xyz(14.0855, 11.1405, 49.5423)
Luminance	0.1114 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3756BD #BD9E37

analogous

#3799BD #3756BD #5B37BD

triadic

#3756BD #BD3756 #56BD37

tetradic

#3756BD #BD3799 #BD9E37 #37BD5B

square

#3756BD #BD3799 #BD9E37 #37BD5B

split-complementary

#3756BD #BD5B37 #99BD37

monochromatic

#1B2B5E #29408E #3756BD #607AD1 #90A2DF

Accessibility & contrast

On white

6.50

#3756BD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.23

#3756BD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3756BD

6.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3756BD	#FFFFFF	#000000	##FFFFFF
##3756BD	1.00	6.50	3.23	6.50
#FFFFFF	6.50	1.00	21.00	1.00
#000000	3.23	21.00	1.00	21.00
##FFFFFF	6.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0064C1

Deuteranopia (green-blind)

#0058BB

Tritanopia (blue-blind)

#006F81

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #3756bd;
/* rgb */ color: rgb(55, 86, 189);
/* oklch */ color: oklch(49.0% 0.166 267.3);

Tailwind

colors: {
  custom: {
    50: '#7f85d2',
    500: '#3756bd',
    950: '#000000',
  },
}

SCSS

$custom: #3756bd;
$custom-light: #7f85d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3756bd",
  "rgb": {
    "r": 55,
    "g": 86,
    "b": 189
  },
  "hsl": {
    "h": 226.119,
    "s": 54.918,
    "l": 47.843
  },
  "oklch": {
    "l": 0.49004,
    "c": 0.16596,
    "h": 267.3
  },
  "luminance": 0.11142
}

Semantic roles & 50–950 ramp

primary

#3756BD

secondary

#C9BA86

accent

#BC4ADE

background

#F8F8FD

surface

#EFEFFA

border

#CACAD3

text

#0B0B14

muted

#7C7C83

Preview Lab

Preview with #3756BD

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

Preview Lab → · Contrast checker → · Palette generator →