#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
RGBrgb(55, 101, 184)
HSLhsl(219, 54%, 47%)
HSVhsv(219, 70%, 72%)
CMYKcmyk(70.1%, 45.1%, 0%, 27.8%)
CIE-LABlab(43.62, 12.47, -48.54)
CIE-LCHlch(43.62, 50.12, 284.41°)
OKLaboklab(51.8% -0.0216 -0.1389)
OKLCHoklch(51.8% 0.141 261.1)
XYZxyz(14.8779, 13.5787, 47.1750)
Luminance0.1358 (WCAG relative)
Temperaturecool
Familyblue

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
##3765B81.005.653.725.65
#FFFFFF5.651.0021.001.00
#0000003.7221.001.0021.00
##FFFFFF5.651.0021.001.00

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 →

#3765B8 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva