#3756BF#3756BF

#3756BF is a mid, vivid blue. Relative luminance 0.112; OKLCH L 49.2% C 0.169 H 267.4°. Best body text is #FFFFFF at 6.47:1 contrast (WCAG AA passes).

Color values

HEX	#3756BF
RGB	rgb(55, 86, 191)
HSL	hsl(226, 55%, 48%)
HSV	hsv(226, 71%, 75%)
CMYK	cmyk(71.2%, 55%, 0%, 25.1%)
CIE-LAB	lab(39.96, 24.74, -58.52)
CIE-LCH	lch(39.96, 63.54, 292.92°)
OKLab	oklab(49.16% -0.0077 -0.1685)
OKLCH	oklch(49.16% 0.169 267.4)
XYZ	xyz(14.3040, 11.2279, 50.6935)
Luminance	0.1123 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3756BF #BFA037

analogous

#379ABF #3756BF #5C37BF

triadic

#3756BF #BF3756 #56BF37

tetradic

#3756BF #BF379A #BFA037 #37BF5C

square

#3756BF #BF379A #BFA037 #37BF5C

split-complementary

#3756BF #BF5C37 #9ABF37

monochromatic

#1C2B60 #29418F #3756BF #627BD2 #91A3DF

Accessibility & contrast

On white

6.47

#3756BF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.25

#3756BF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3756BF

6.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3756BF	#FFFFFF	#000000	##FFFFFF
##3756BF	1.00	6.47	3.25	6.47
#FFFFFF	6.47	1.00	21.00	1.00
#000000	3.25	21.00	1.00	21.00
##FFFFFF	6.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0065C3

Deuteranopia (green-blind)

#0058BD

Tritanopia (blue-blind)

#007082

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #3756bf;
/* rgb */ color: rgb(55, 86, 191);
/* oklch */ color: oklch(49.2% 0.169 267.4);

Tailwind

colors: {
  custom: {
    50: '#7f85d3',
    500: '#3756bf',
    950: '#000000',
  },
}

SCSS

$custom: #3756bf;
$custom-light: #7f85d3;
$custom-dark: #000000;

JSON

{
  "hex": "#3756bf",
  "rgb": {
    "r": 55,
    "g": 86,
    "b": 191
  },
  "hsl": {
    "h": 226.324,
    "s": 55.285,
    "l": 48.235
  },
  "oklch": {
    "l": 0.4916,
    "c": 0.16869,
    "h": 267.4
  },
  "luminance": 0.11229
}

Semantic roles & 50–950 ramp

primary

#3756BF

secondary

#CABB88

accent

#BD49DF

background

#F8F8FD

surface

#F0EFFA

border

#CBCAD3

text

#0B0B14

muted

#7C7C83

Preview Lab

Preview with #3756BF

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

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