#3769D1#3769D1

#3769D1 is a mid, vivid blue. Relative luminance 0.155; OKLCH L 54.4% C 0.170 H 262.8°. Best body text is #FFFFFF at 5.12:1 contrast (WCAG AA passes).

Color values

HEX	#3769D1
RGB	rgb(55, 105, 209)
HSL	hsl(221, 63%, 52%)
HSV	hsv(221, 74%, 82%)
CMYK	cmyk(73.7%, 49.8%, 0%, 18%)
CIE-LAB	lab(46.33, 19.15, -58.61)
CIE-LCH	lch(46.33, 61.66, 288.09°)
OKLab	oklab(54.39% -0.0214 -0.1684)
OKLCH	oklch(54.39% 0.17 262.8)
XYZ	xyz(18.1316, 15.5168, 62.3487)
Luminance	0.1552 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3769D1 #D19F37

analogous

#37B6D1 #3769D1 #5237D1

triadic

#3769D1 #D13769 #69D137

tetradic

#3769D1 #D137B6 #D19F37 #37D152

square

#3769D1 #D137B6 #D19F37 #37D152

split-complementary

#3769D1 #D15237 #B6D137

monochromatic

#1A3773 #264FA5 #3769D1 #698EDC #9BB4E8

Accessibility & contrast

On white

5.12

#3769D1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.10

#3769D1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3769D1

5.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3769D1	#FFFFFF	#000000	##FFFFFF
##3769D1	1.00	5.12	4.10	5.12
#FFFFFF	5.12	1.00	21.00	1.00
#000000	4.10	21.00	1.00	21.00
##FFFFFF	5.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B75D5

Deuteranopia (green-blind)

#0067CF

Tritanopia (blue-blind)

#008293

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #3769d1;
/* rgb */ color: rgb(55, 105, 209);
/* oklch */ color: oklch(54.4% 0.170 262.8);

Tailwind

colors: {
  custom: {
    50: '#8293e0',
    500: '#3769d1',
    950: '#000000',
  },
}

SCSS

$custom: #3769d1;
$custom-light: #8293e0;
$custom-dark: #000000;

JSON

{
  "hex": "#3769d1",
  "rgb": {
    "r": 55,
    "g": 105,
    "b": 209
  },
  "hsl": {
    "h": 220.519,
    "s": 62.602,
    "l": 51.765
  },
  "oklch": {
    "l": 0.5439,
    "c": 0.1698,
    "h": 262.8
  },
  "luminance": 0.15519
}

Semantic roles & 50–950 ramp

primary

#3769D1

secondary

#D4BE90

accent

#B142E6

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0D15

muted

#7D7D83

Preview Lab

Preview with #3769D1

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

Preview Lab → · Contrast checker → · Palette generator →