#3763BF#3763BF

#3763BF is a mid, vivid blue. Relative luminance 0.135; OKLCH L 51.8% C 0.153 H 263.0°. Best body text is #FFFFFF at 5.68:1 contrast (WCAG AA passes).

Color values

HEX	#3763BF
RGB	rgb(55, 99, 191)
HSL	hsl(221, 55%, 48%)
HSV	hsv(221, 71%, 75%)
CMYK	cmyk(71.2%, 48.2%, 0%, 25.1%)
CIE-LAB	lab(43.50, 16.34, -52.81)
CIE-LCH	lch(43.50, 55.28, 287.19°)
OKLab	oklab(51.85% -0.0187 -0.1515)
OKLCH	oklch(51.85% 0.153 263)
XYZ	xyz(15.4380, 13.4959, 51.0715)
Luminance	0.1350 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3763BF #BF9337

analogous

#37A7BF #3763BF #4F37BF

triadic

#3763BF #BF3763 #63BF37

tetradic

#3763BF #BF37A7 #BF9337 #37BF4F

square

#3763BF #BF37A7 #BF9337 #37BF4F

split-complementary

#3763BF #BF4F37 #A7BF37

monochromatic

#1C3260 #294A8F #3763BF #6286D2 #91AADF

Accessibility & contrast

On white

5.68

#3763BF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.70

#3763BF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3763BF

5.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3763BF	#FFFFFF	#000000	##FFFFFF
##3763BF	1.00	5.68	3.70	5.68
#FFFFFF	5.68	1.00	21.00	1.00
#000000	3.70	21.00	1.00	21.00
##FFFFFF	5.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#316DC2

Deuteranopia (green-blind)

#0961BD

Tritanopia (blue-blind)

#007988

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #3763bf;
/* rgb */ color: rgb(55, 99, 191);
/* oklch */ color: oklch(51.8% 0.153 263.0);

Tailwind

colors: {
  custom: {
    50: '#7f8ed3',
    500: '#3763bf',
    950: '#000000',
  },
}

SCSS

$custom: #3763bf;
$custom-light: #7f8ed3;
$custom-dark: #000000;

JSON

{
  "hex": "#3763bf",
  "rgb": {
    "r": 55,
    "g": 99,
    "b": 191
  },
  "hsl": {
    "h": 220.588,
    "s": 55.285,
    "l": 48.235
  },
  "oklch": {
    "l": 0.51848,
    "c": 0.15264,
    "h": 263
  },
  "luminance": 0.13497
}

Semantic roles & 50–950 ramp

primary

#3763BF

secondary

#CAB588

accent

#AE49DF

background

#F8F8FD

surface

#EFF0FA

border

#CACBD3

text

#0B0C14

muted

#7C7D83

Preview Lab

Preview with #3763BF

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

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