#3865B9#3865B9

#3865B9 is a mid, vivid blue. Relative luminance 0.137; OKLCH L 51.9% C 0.142 H 261.6°. Best body text is #FFFFFF at 5.63:1 contrast (WCAG AA passes).

Color values

HEX#3865B9
RGBrgb(56, 101, 185)
HSLhsl(219, 54%, 47%)
HSVhsv(219, 70%, 73%)
CMYKcmyk(69.7%, 45.4%, 0%, 27.5%)
CIE-LABlab(43.73, 12.99, -48.96)
CIE-LCHlch(43.73, 50.65, 284.86°)
OKLaboklab(51.91% -0.0207 -0.1401)
OKLCHoklch(51.91% 0.142 261.6)
XYZxyz(15.0384, 13.6493, 47.7316)
Luminance0.1365 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3865B9 #B98C38
analogous
#38A5B9 #3865B9 #4C38B9
triadic
#3865B9 #B93865 #65B938
tetradic
#3865B9 #B938A5 #B98C38 #38B94C
square
#3865B9 #B938A5 #B98C38 #38B94C
split-complementary
#3865B9 #B94C38 #A5B938
monochromatic
#1C325B #2A4B8A #3865B9 #5F86CF #8EAADD

Accessibility & contrast

On white

5.63
#3865B9 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

3.73
#3865B9 on #000000
AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3865B9
5.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3865B9#FFFFFF#000000##FFFFFF
##3865B91.005.633.735.63
#FFFFFF5.631.0021.001.00
#0000003.7321.001.0021.00
##FFFFFF5.631.0021.001.00

Color blindness preview

Protanopia (red-blind)
#3B6EBC
Deuteranopia (green-blind)
#2262B7
Tritanopia (blue-blind)
#007986
Achromatopsia (no color)
#676767

Design tokens & code

CSS
--color: #3865b9;
/* rgb */ color: rgb(56, 101, 185);
/* oklch */ color: oklch(51.9% 0.142 261.6);
Tailwind
colors: {
  custom: {
    50: '#7e90ce',
    500: '#3865b9',
    950: '#000000',
  },
}
SCSS
$custom: #3865b9;
$custom-light: #7e90ce;
$custom-dark: #000000;
JSON
{
  "hex": "#3865b9",
  "rgb": {
    "r": 56,
    "g": 101,
    "b": 185
  },
  "hsl": {
    "h": 219.07,
    "s": 53.527,
    "l": 47.255
  },
  "oklch": {
    "l": 0.5191,
    "c": 0.14163,
    "h": 261.6
  },
  "luminance": 0.13651
}

Semantic roles & 50–950 ramp

primary
#3865B9
secondary
#C8B085
accent
#AA4BDD
background
#F8F8FC
surface
#EFF0F9
border
#CACBD2
text
#0B0C14
muted
#7C7D82

Preview Lab

Preview with #3865B9

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

Preview Lab → · Contrast checker → · Palette generator →

#3865B9 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva