#3756DA#3756DA

#3756DA is a mid, highly saturated blue. Relative luminance 0.125; OKLCH L 51.4% C 0.204 H 268.1°. Best body text is #FFFFFF at 5.99:1 contrast (WCAG AA passes).

Color values

HEX	#3756DA
RGB	rgb(55, 86, 218)
HSL	hsl(229, 69%, 54%)
HSV	hsv(229, 75%, 85%)
CMYK	cmyk(74.8%, 60.6%, 0%, 14.5%)
CIE-LAB	lab(42.04, 34.55, -70.72)
CIE-LCH	lch(42.04, 78.71, 296.04°)
OKLab	oklab(51.37% -0.0069 -0.2043)
OKLCH	oklch(51.37% 0.204 268.1)
XYZ	xyz(17.5538, 12.5278, 67.8091)
Luminance	0.1253 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3756DA #DABB37

analogous

#37A7DA #3756DA #6937DA

triadic

#3756DA #DA3756 #56DA37

tetradic

#3756DA #DA37A7 #DABB37 #37DA69

square

#3756DA #DA37A7 #DABB37 #37DA69

split-complementary

#3756DA #DA6937 #A7DA37

monochromatic

#182B7F #213DB3 #3756DA #6B82E4 #9EADED

Accessibility & contrast

On white

5.99

#3756DA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.51

#3756DA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3756DA

5.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3756DA	#FFFFFF	#000000	##FFFFFF
##3756DA	1.00	5.99	3.51	5.99
#FFFFFF	5.99	1.00	21.00	1.00
#000000	3.51	21.00	1.00	21.00
##FFFFFF	5.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006BDE

Deuteranopia (green-blind)

#005CD7

Tritanopia (blue-blind)

#007890

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #3756da;
/* rgb */ color: rgb(55, 86, 218);
/* oklch */ color: oklch(51.4% 0.204 268.1);

Tailwind

colors: {
  custom: {
    50: '#8585e6',
    500: '#3756da',
    950: '#000000',
  },
}

SCSS

$custom: #3756da;
$custom-light: #8585e6;
$custom-dark: #000000;

JSON

{
  "hex": "#3756da",
  "rgb": {
    "r": 55,
    "g": 86,
    "b": 218
  },
  "hsl": {
    "h": 228.589,
    "s": 68.776,
    "l": 53.529
  },
  "oklch": {
    "l": 0.51367,
    "c": 0.20447,
    "h": 268.1
  },
  "luminance": 0.1253
}

Semantic roles & 50–950 ramp

primary

#3756DA

secondary

#D9CC93

accent

#CA3CEC

background

#F9F8FE

surface

#F1EFFD

border

#CBCAD5

text

#0D0B16

muted

#7E7C84

Preview Lab

Preview with #3756DA

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

Preview Lab → · Contrast checker → · Palette generator →