#3765B8#3765B8

#3765B8 is a mid, vivid blue. Relative luminance 0.136; OKLCH L 51.8% C 0.141 H 261.1°. Best body text is #FFFFFF at 5.65:1 contrast (WCAG AA passes).

Color values

HEX	#3765B8
RGB	rgb(55, 101, 184)
HSL	hsl(219, 54%, 47%)
HSV	hsv(219, 70%, 72%)
CMYK	cmyk(70.1%, 45.1%, 0%, 27.8%)
CIE-LAB	lab(43.62, 12.47, -48.54)
CIE-LCH	lch(43.62, 50.12, 284.41°)
OKLab	oklab(51.8% -0.0216 -0.1389)
OKLCH	oklch(51.8% 0.141 261.1)
XYZ	xyz(14.8779, 13.5787, 47.1750)
Luminance	0.1358 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3765B8 #B88A37

analogous

#37A6B8 #3765B8 #4A37B8

triadic

#3765B8 #B83765 #65B837

tetradic

#3765B8 #B837A6 #B88A37 #37B84A

square

#3765B8 #B837A6 #B88A37 #37B84A

split-complementary

#3765B8 #B84A37 #A6B837

monochromatic

#1B315A #294B89 #3765B8 #5D86CF #8DA9DD

Accessibility & contrast

On white

5.65

#3765B8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.72

#3765B8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3765B8

5.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3765B8	#FFFFFF	#000000	##FFFFFF
##3765B8	1.00	5.65	3.72	5.65
#FFFFFF	5.65	1.00	21.00	1.00
#000000	3.72	21.00	1.00	21.00
##FFFFFF	5.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C6DBB

Deuteranopia (green-blind)

#2362B6

Tritanopia (blue-blind)

#007885

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #3765b8;
/* rgb */ color: rgb(55, 101, 184);
/* oklch */ color: oklch(51.8% 0.141 261.1);

Tailwind

colors: {
  custom: {
    50: '#7d90ce',
    500: '#3765b8',
    950: '#000000',
  },
}

SCSS

$custom: #3765b8;
$custom-light: #7d90ce;
$custom-dark: #000000;

JSON

{
  "hex": "#3765b8",
  "rgb": {
    "r": 55,
    "g": 101,
    "b": 184
  },
  "hsl": {
    "h": 218.605,
    "s": 53.975,
    "l": 46.863
  },
  "oklch": {
    "l": 0.51799,
    "c": 0.14058,
    "h": 261.1
  },
  "luminance": 0.1358
}

Semantic roles & 50–950 ramp

primary

#3765B8

secondary

#C7AF84

accent

#A94ADD

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0C13

muted

#7C7D82

Preview Lab

Preview with #3765B8

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

Preview Lab → · Contrast checker → · Palette generator →