#3763B7#3763B7

#3763B7 is a mid, vivid blue. Relative luminance 0.132; OKLCH L 51.3% C 0.142 H 261.9°. Best body text is #FFFFFF at 5.78:1 contrast (WCAG AA passes).

Color values

HEX	#3763B7
RGB	rgb(55, 99, 183)
HSL	hsl(219, 54%, 47%)
HSV	hsv(219, 70%, 72%)
CMYK	cmyk(69.9%, 45.9%, 0%, 28.2%)
CIE-LAB	lab(42.99, 13.38, -48.97)
CIE-LCH	lch(42.99, 50.76, 285.29°)
OKLab	oklab(51.3% -0.0199 -0.1402)
OKLCH	oklch(51.3% 0.142 261.9)
XYZ	xyz(14.5816, 13.1533, 46.5609)
Luminance	0.1316 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3763B7 #B78B37

analogous

#37A3B7 #3763B7 #4B37B7

triadic

#3763B7 #B73763 #63B737

tetradic

#3763B7 #B737A3 #B78B37 #37B74B

square

#3763B7 #B737A3 #B78B37 #37B74B

split-complementary

#3763B7 #B74B37 #A3B737

monochromatic

#1B3059 #294A88 #3763B7 #5D84CE #8CA8DC

Accessibility & contrast

On white

5.78

#3763B7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.63

#3763B7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3763B7

5.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3763B7	#FFFFFF	#000000	##FFFFFF
##3763B7	1.00	5.78	3.63	5.78
#FFFFFF	5.78	1.00	21.00	1.00
#000000	3.63	21.00	1.00	21.00
##FFFFFF	5.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#386CBA

Deuteranopia (green-blind)

#1F60B5

Tritanopia (blue-blind)

#007784

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #3763b7;
/* rgb */ color: rgb(55, 99, 183);
/* oklch */ color: oklch(51.3% 0.142 261.9);

Tailwind

colors: {
  custom: {
    50: '#7d8ecd',
    500: '#3763b7',
    950: '#000000',
  },
}

SCSS

$custom: #3763b7;
$custom-light: #7d8ecd;
$custom-dark: #000000;

JSON

{
  "hex": "#3763b7",
  "rgb": {
    "r": 55,
    "g": 99,
    "b": 183
  },
  "hsl": {
    "h": 219.375,
    "s": 53.782,
    "l": 46.667
  },
  "oklch": {
    "l": 0.51295,
    "c": 0.1416,
    "h": 261.9
  },
  "luminance": 0.13155
}

Semantic roles & 50–950 ramp

primary

#3763B7

secondary

#C7B083

accent

#AB4BDD

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0C13

muted

#7C7D82

Preview Lab

Preview with #3763B7

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

Preview Lab → · Contrast checker → · Palette generator →