#3763C9#3763C9

#3763C9 is a mid, vivid blue. Relative luminance 0.140; OKLCH L 52.6% C 0.166 H 264.0°. Best body text is #FFFFFF at 5.54:1 contrast (WCAG AA passes).

Color values

HEX	#3763C9
RGB	rgb(55, 99, 201)
HSL	hsl(222, 57%, 50%)
HSV	hsv(222, 73%, 79%)
CMYK	cmyk(72.6%, 50.7%, 0%, 21.2%)
CIE-LAB	lab(44.16, 20.03, -57.52)
CIE-LCH	lch(44.16, 60.91, 289.20°)
OKLab	oklab(52.56% -0.0174 -0.1654)
OKLCH	oklch(52.56% 0.166 264)
XYZ	xyz(16.5763, 13.9512, 57.0663)
Luminance	0.1395 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3763C9 #C99D37

analogous

#37ACC9 #3763C9 #5437C9

triadic

#3763C9 #C93763 #63C937

tetradic

#3763C9 #C937AC #C99D37 #37C954

square

#3763C9 #C937AC #C99D37 #37C954

split-complementary

#3763C9 #C95437 #ACC937

monochromatic

#1C3469 #294B99 #3763C9 #6789D6 #97AEE3

Accessibility & contrast

On white

5.54

#3763C9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.79

#3763C9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3763C9

5.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3763C9	#FFFFFF	#000000	##FFFFFF
##3763C9	1.00	5.54	3.79	5.54
#FFFFFF	5.54	1.00	21.00	1.00
#000000	3.79	21.00	1.00	21.00
##FFFFFF	5.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#246FCD

Deuteranopia (green-blind)

#0062C7

Tritanopia (blue-blind)

#007B8C

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #3763c9;
/* rgb */ color: rgb(55, 99, 201);
/* oklch */ color: oklch(52.6% 0.166 264.0);

Tailwind

colors: {
  custom: {
    50: '#818eda',
    500: '#3763c9',
    950: '#000000',
  },
}

SCSS

$custom: #3763c9;
$custom-light: #818eda;
$custom-dark: #000000;

JSON

{
  "hex": "#3763c9",
  "rgb": {
    "r": 55,
    "g": 99,
    "b": 201
  },
  "hsl": {
    "h": 221.918,
    "s": 57.48,
    "l": 50.196
  },
  "oklch": {
    "l": 0.52564,
    "c": 0.16628,
    "h": 264
  },
  "luminance": 0.13953
}

Semantic roles & 50–950 ramp

primary

#3763C9

secondary

#CFBB8D

accent

#B247E1

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3763C9

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

Preview Lab → · Contrast checker → · Palette generator →