#3763B9#3763B9

#3763B9 is a mid, vivid blue. Relative luminance 0.132; OKLCH L 51.4% C 0.144 H 262.2°. Best body text is #FFFFFF at 5.76:1 contrast (WCAG AA passes).

Color values

HEX	#3763B9
RGB	rgb(55, 99, 185)
HSL	hsl(220, 54%, 47%)
HSV	hsv(220, 70%, 73%)
CMYK	cmyk(70.3%, 46.5%, 0%, 27.5%)
CIE-LAB	lab(43.12, 14.12, -49.93)
CIE-LCH	lch(43.12, 51.89, 285.79°)
OKLab	oklab(51.43% -0.0196 -0.143)
OKLCH	oklch(51.43% 0.144 262.2)
XYZ	xyz(14.7912, 13.2372, 47.6650)
Luminance	0.1324 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3763B9 #B98D37

analogous

#37A4B9 #3763B9 #4C37B9

triadic

#3763B9 #B93763 #63B937

tetradic

#3763B9 #B937A4 #B98D37 #37B94C

square

#3763B9 #B937A4 #B98D37 #37B94C

split-complementary

#3763B9 #B94C37 #A4B937

monochromatic

#1B315B #294A8A #3763B9 #5E84CF #8DA8DD

Accessibility & contrast

On white

5.76

#3763B9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.65

#3763B9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3763B9

5.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3763B9	#FFFFFF	#000000	##FFFFFF
##3763B9	1.00	5.76	3.65	5.76
#FFFFFF	5.76	1.00	21.00	1.00
#000000	3.65	21.00	1.00	21.00
##FFFFFF	5.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#376CBC

Deuteranopia (green-blind)

#1B60B7

Tritanopia (blue-blind)

#007785

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #3763b9;
/* rgb */ color: rgb(55, 99, 185);
/* oklch */ color: oklch(51.4% 0.144 262.2);

Tailwind

colors: {
  custom: {
    50: '#7d8ece',
    500: '#3763b9',
    950: '#000000',
  },
}

SCSS

$custom: #3763b9;
$custom-light: #7d8ece;
$custom-dark: #000000;

JSON

{
  "hex": "#3763b9",
  "rgb": {
    "r": 55,
    "g": 99,
    "b": 185
  },
  "hsl": {
    "h": 219.692,
    "s": 54.167,
    "l": 47.059
  },
  "oklch": {
    "l": 0.51431,
    "c": 0.14437,
    "h": 262.2
  },
  "luminance": 0.13239
}

Semantic roles & 50–950 ramp

primary

#3763B9

secondary

#C8B184

accent

#AC4ADE

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0C14

muted

#7C7D82

Preview Lab

Preview with #3763B9

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

Preview Lab → · Contrast checker → · Palette generator →