Blue #0000FF is the digital version of a blue marker pressed at full strength: no red, no green, and no uncertainty.
| Color model | Value | Common use |
|---|---|---|
| HEX | #0000FF | Web and interface color |
| RGB | rgb(0, 0, 255) | Digital screens |
| HSL | hsl(240, 100%, 50%) | Hue-based adjustments |
| HSV | hsv(240, 100%, 100%) | Color pickers |
| CMYK | 100%, 100%, 0%, 0% | Print reference |
#0000ff
#ffff00
#ff0000
#ffffff
#0000ff
#ffa500
#ffe0a3
#151a2d
#0000ff
#f5f7fa
#a8b3c7
#111827
#0000ff
#00ffff
#ff00ff
#0b0b18
On a screen, #0000FF doesn't whisper. It arrives like an old-school hyperlink: immediate, familiar, and impossible to confuse with navy or sky blue.
That certainty is useful. Give it to a selected tab, a route on a map, player-one graphics, or a single chart line that must survive a crowded page.
The RGB recipe is as simple as it gets: 0, 0, 255. Orange changes the temperature at once; white opens up the contrast; pale gray takes some pressure off a large blue block.

#0000ff
#1a1aff
#3333ff
#4c4cff
#6666ff
#8080ff
#9999ff
#b2b2ff
#ccccff
#e6e6ff
#ffffff
#0000ff
#0000e6
#0000cc
#0000b2
#000099
#000080
#000066
#00004c
#000033
#00001a
#0000ff
#ffffff
#ffffff
#0000a6
#0000d1
#0000ff
#2e2eff
#5959ff
#ffffff
#0000ff
#ffffff
#0000ff
#ffffff