#3763C5#3763C5

#3763C5 is a mid, vivid blue. Relative luminance 0.138; OKLCH L 52.3% C 0.161 H 263.6°. Best body text is #FFFFFF at 5.59:1 contrast (WCAG AA passes).

Color values

HEX	#3763C5
RGB	rgb(55, 99, 197)
HSL	hsl(221, 56%, 49%)
HSV	hsv(221, 72%, 77%)
CMYK	cmyk(72.1%, 49.7%, 0%, 22.7%)
CIE-LAB	lab(43.89, 18.55, -55.65)
CIE-LCH	lch(43.89, 58.66, 288.44°)
OKLab	oklab(52.27% -0.0179 -0.1598)
OKLCH	oklch(52.27% 0.161 263.6)
XYZ	xyz(16.1119, 13.7654, 54.6204)
Luminance	0.1377 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3763C5 #C59937

analogous

#37AAC5 #3763C5 #5237C5

triadic

#3763C5 #C53763 #63C537

tetradic

#3763C5 #C537AA #C59937 #37C552

square

#3763C5 #C537AA #C59937 #37C552

split-complementary

#3763C5 #C55237 #AAC537

monochromatic

#1C3365 #2A4B95 #3763C5 #6588D4 #95ADE1

Accessibility & contrast

On white

5.59

#3763C5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.75

#3763C5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3763C5

5.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3763C5	#FFFFFF	#000000	##FFFFFF
##3763C5	1.00	5.59	3.75	5.59
#FFFFFF	5.59	1.00	21.00	1.00
#000000	3.75	21.00	1.00	21.00
##FFFFFF	5.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A6FC9

Deuteranopia (green-blind)

#0062C3

Tritanopia (blue-blind)

#007A8A

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #3763c5;
/* rgb */ color: rgb(55, 99, 197);
/* oklch */ color: oklch(52.3% 0.161 263.6);

Tailwind

colors: {
  custom: {
    50: '#808ed7',
    500: '#3763c5',
    950: '#000000',
  },
}

SCSS

$custom: #3763c5;
$custom-light: #808ed7;
$custom-dark: #000000;

JSON

{
  "hex": "#3763c5",
  "rgb": {
    "r": 55,
    "g": 99,
    "b": 197
  },
  "hsl": {
    "h": 221.408,
    "s": 56.349,
    "l": 49.412
  },
  "oklch": {
    "l": 0.52274,
    "c": 0.16084,
    "h": 263.6
  },
  "luminance": 0.13767
}

Semantic roles & 50–950 ramp

primary

#3763C5

secondary

#CDB88B

accent

#B148E0

background

#F8F8FD

surface

#F0F0FA

border

#CBCBD3

text

#0B0C14

muted

#7C7D83

Preview Lab

Preview with #3763C5

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

Preview Lab → · Contrast checker → · Palette generator →