Sifency Tools

400 × 300 placeholder image

This page makes 400 × 300 px placeholder images, the Small 4:3 card size. It fits compact cards, sidebars and related-post lists that need a little more height than 16:9. It is a 4:3 landscape image of 0.1 megapixels. Pick a colour below and download it, or add it to a batch.

Live preview

400 × 300 px · 4:3 · 0.1 MP

Saves as placeholder-400x300-3b82f6.png

Size

Up to 8192 px on a side and 16.8 megapixels in total.

Style

Fill

Pattern

Label

Colour

rgb(59, 130, 246) · hsl(217, 91%, 60%)

Suggested colours

Shades of this colour

File

Tokens: {width} {height} {size} {color}

Copy as code

Paste the placeholder straight into HTML or CSS. It uses the format chosen above (PNG); SVG gives the shortest text.

Batch download

Collect several sizes, then save them all as one PNG ZIP. Up to 60 images.

The queue is empty. Add the image you see above, or a whole set of ready-made sizes in the current colour and style.

Similar placeholder sizes

How it works

  1. Choose a size

    Pick a ready-made size from the list, such as a hero, an Open Graph image or an ad slot, or type your own width and height. Lock the ratio to keep the shape while you resize.

  2. Pick a colour

    Use a suggested colour, a shade of your current colour, the colour picker, or type any hex, rgb or hsl value. The preview updates as you type.

  3. Add a style if you want one

    Keep it flat, add a soft gradient or a subtle pattern, and turn on a label that shows the size. The label is always black or white, whichever is easier to read.

  4. Download

    Choose PNG, WebP, JPG or SVG and press Download. The file is made on your device and named from the size and colour, so it is easy to find and replace later.

Questions about 400 × 300 images

What size is the Small 4:3 card placeholder?

It is 400 × 300 px, a 4:3 landscape image of 0.1 megapixels. Small 4:3 image for compact cards.

What is the 400 × 300 size used for?

It fits compact cards, sidebars and related-post lists that need a little more height than 16:9. It is listed under web and layout in the ready-made sizes.

Should I make the 400 × 300 image bigger?

For sharp results on high-density screens, use 800 × 600 px, which is twice the width and height. Type those numbers into the size fields. Use it beside the 600 by 400 card image to see how two card shapes sit together.

How heavy is a 400 × 300 placeholder?

A flat-colour SVG of 400 × 300 px is only about 140 bytes, small enough to paste as a data URI. A decoded raster version needs about 469 KB of memory, which is light for any device.

Can I choose another colour or format for 400 × 300?

Yes. Choose any colour, a gradient, a pattern or a label, and save it as PNG, WebP, JPG or SVG. By default the file is called placeholder-400x300-3b82f6.png. Swap the placeholder for a real, optimised image before launch, and keep the width and height attributes so the page does not jump while it loads.

Next step

Take the colours from a real image

Instead of guessing a placeholder colour, drop in a photo or a logo and pull its main colours out, ready to paste as CSS variables or a Tailwind theme.

Get a palette from an image
View all tools

About these tools

Small tools, made by Sifency

Sifency is a small studio that builds themes, plugins and web apps. These tools began as the things we kept needing ourselves, so we tidied them up and left them open for everyone. There is nothing to sign up for.