#3763BC#3763BC

#3763BC is a mid, vivid blue. Relative luminance 0.134; OKLCH L 51.6% C 0.149 H 262.6°. Best body text is #FFFFFF at 5.72:1 contrast (WCAG AA passes).

Color values

HEX	#3763BC
RGB	rgb(55, 99, 188)
HSL	hsl(220, 55%, 48%)
HSV	hsv(220, 71%, 74%)
CMYK	cmyk(70.7%, 47.3%, 0%, 26.3%)
CIE-LAB	lab(43.31, 15.23, -51.37)
CIE-LCH	lch(43.31, 53.58, 286.51°)
OKLab	oklab(51.64% -0.0191 -0.1473)
OKLCH	oklch(51.64% 0.149 262.6)
XYZ	xyz(15.1113, 13.3652, 49.3506)
Luminance	0.1337 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3763BC #BC9037

analogous

#37A6BC #3763BC #4D37BC

triadic

#3763BC #BC3763 #63BC37

tetradic

#3763BC #BC37A6 #BC9037 #37BC4D

square

#3763BC #BC37A6 #BC9037 #37BC4D

split-complementary

#3763BC #BC4D37 #A6BC37

monochromatic

#1B315D #294A8D #3763BC #6085D0 #8FA9DE

Accessibility & contrast

On white

5.72

#3763BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.67

#3763BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3763BC

5.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3763BC	#FFFFFF	#000000	##FFFFFF
##3763BC	1.00	5.72	3.67	5.72
#FFFFFF	5.72	1.00	21.00	1.00
#000000	3.67	21.00	1.00	21.00
##FFFFFF	5.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#346DBF

Deuteranopia (green-blind)

#1461BA

Tritanopia (blue-blind)

#007886

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #3763bc;
/* rgb */ color: rgb(55, 99, 188);
/* oklch */ color: oklch(51.6% 0.149 262.6);

Tailwind

colors: {
  custom: {
    50: '#7e8ed1',
    500: '#3763bc',
    950: '#000000',
  },
}

SCSS

$custom: #3763bc;
$custom-light: #7e8ed1;
$custom-dark: #000000;

JSON

{
  "hex": "#3763bc",
  "rgb": {
    "r": 55,
    "g": 99,
    "b": 188
  },
  "hsl": {
    "h": 220.15,
    "s": 54.733,
    "l": 47.647
  },
  "oklch": {
    "l": 0.51638,
    "c": 0.14851,
    "h": 262.6
  },
  "luminance": 0.13367
}

Semantic roles & 50–950 ramp

primary

#3763BC

secondary

#C9B386

accent

#AD4ADE

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0C14

muted

#7C7D82

Preview Lab

Preview with #3763BC

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

Preview Lab → · Contrast checker → · Palette generator →