The 1500x500 X header, and the parts of it nobody ever sees

A 1500x500 header looks like a generous canvas and behaves like a much smaller one. The avatar covers a corner of it, the profile name and bio sit directly beneath it, and on a narrow window the sides are taken off. What is left is a strip in the middle, and a header that was composed for the full rectangle ends up with its subject half hidden behind a circular photo.

This is a layout problem rather than an art problem, and it has a stable answer, because the things that cover the header cover it in the same places every time.

The three things that take space

The avatar

The profile picture is a circle that sits over the lower left of the header, overlapping its bottom edge by roughly half its own height. In header coordinates it occupies a block in the region of 240 pixels wide starting around 60 pixels in from the left, and it reaches about 150 pixels up from the bottom edge. Nothing placed there will ever be seen.

The crop on narrow windows

The header is always shown at 3:1. When the column it sits in is narrower than 1500 pixels, which on a phone it always is, the image is scaled rather than cropped vertically, so the ratio holds. The practical loss is at the extreme left and right edges in some layouts, and more importantly everything gets smaller: a line of text that is comfortable at 1500 wide is a smear at 500.

The card beneath it

The display name, handle, bio and link sit immediately below the header in an opaque block. They do not cover it, but they are the thing a visitor reads next, which means the header should not be repeating what that block already says. A header containing the server name, under a display name containing the server name, above a bio containing the server name, is three copies of one fact.

What belongs in the safe block

At the size this is actually viewed, which on a phone is a strip about 380 pixels wide, the header holds one idea. Not three.

• The mark, at a size that reads at 380 pixels wide. That usually means it occupies at least a sixth of the header's height.
• Either the server name or a short line that says what the server is. Not both, unless the name is the mark.
• Scene, which is the whole rest of the file and which is what makes it look like a server rather than a template.

A header that tries to carry opening hours, a Discord invite, a tagline and three platform logos is carrying nothing, because at the size the header is read none of them is legible and the eye skips to the bio instead.

The composition that survives

The avatar sits bottom left, which pushes everything else in one direction: content to the right of centre, scene to the left. That sounds like a constraint and it is actually the easiest composition in the whole pack, because it matches how the artwork is already built.

1. Put the visual subject, the skyline, the vehicle, the character, in the left two fifths. The avatar will overlap its base, which reads as depth rather than as damage.
2. Put the mark and the line in the right three fifths, vertically centred in the safe block rather than in the file.
3. Let the background carry across the whole width, including the parts that are covered and trimmed, so that no crop reveals an edge.
4. Check it at 380 pixels wide before anything else.

The fourth step is the one that changes the design. A header evaluated at full size always looks fine. The same file at phone width is where a thin typeface turns to grey mush and a mark with a two pixel outline loses the outline.

Recompression, and why the file is not the picture

X re-encodes uploaded images. Whatever is uploaded is not what is served, and the difference falls hardest on exactly the things a server header tends to have: large flat gradients, a glow around a mark, and fine noise or grain.

• Gradients band. A smooth sky becomes visible steps. Adding a very small amount of noise to the gradient before upload hides the banding, because the encoder then has something to spend bits on.
• Glows acquire blocks. A soft halo around a mark is a large area of slowly changing colour, which is the worst case for a block based encoder. A tighter, harder glow survives better than a wide soft one.
• Fine grain is removed and the bits go elsewhere. Texture that is doing real work in the composition should be coarse enough to survive.

None of this is a reason to upload a smaller file. Upload the full 1500x500 at high quality and let the platform reduce it once, rather than reducing it yourself and letting the platform reduce it again.

How this differs from the other wide formats

A pack contains several wide strips and they are not interchangeable, because the thing that covers them is different in each case.

Reusing the X header as a Discord banner puts the mark in the wrong half and leaves the avatar hole visible as an odd empty corner. The scene can be shared across all five. The layout cannot.

Is an X presence worth it for a server

Honestly, for most roleplay servers X is the fourth or fifth platform in order of return, well behind Discord, the server list itself and a loading screen that does its job. It is worth having a profile that looks maintained, because people do check, and it is rarely worth a content strategy.

Which is an argument for getting the header right once rather than for posting more. A profile with a correct header, a matching avatar and a pinned post with the Discord link reads as a real project. The same profile with a stretched screenshot as a header reads as abandoned, and it is the only thing most visitors will ever see of it.

Questions people actually ask

Should the header be animated?

It cannot be. The header slot is a still image. The animated files in a pack belong to Discord, the server list detail strip and the in-game watermark, which are the three places animation is actually supported.

Why 1500x500 and not something larger?

Because 1500x500 is the size the platform displays at its maximum, and anything larger is reduced on upload with no benefit. The render is produced above that size and reduced once, cleanly, before the file is written. That is a different thing from uploading a 3000 pixel file and letting the platform decide.

Can the same artwork work as a header and a YouTube banner?

The scene can. The layout cannot, because YouTube's safe area is a small centred rectangle inside a much larger file and X's is an off-centre block pushed right by the avatar. A pack renders both from the same composition with different crops and different mark placement, which is the only way to get consistency without reuse.