Caption styles for short clips: which colours and sizes hold up on a phone

Most auto-caption tools give every clip the same look: white text, one highlight colour, the same size. That is fine for one clip. It becomes a problem when you post every day, because a viewer scrolling past your clip and the next creator's clip sees the same captions on both, and nothing says which one is yours.

The caption style is one of the few things on a clip that you control on every single post. Here is how to choose one that stays readable and still looks like you.

Two colours, two jobs

Word-by-word captions use two colours, and they do different jobs.

• The text colour is every word on screen that is not being said right now. It carries the reading. It has to be legible on whatever is behind it: a dark studio, a bright game, a white kitchen wall.
• The highlight colour is the one word being spoken. It carries the rhythm. The eye jumps to it, which is what makes a muted clip feel like it is talking.

So the text colour should be quiet and safe, and the highlight should be the loud one. Picking a loud text colour and a quiet highlight is the most common way to end up with captions that look busy and read slowly.

Light text, dark outline, always

Clip captions sit on top of moving footage, and you do not know in advance what will be behind each word. The reliable answer is light text with a thick dark outline. The outline is what keeps a white word readable over a white shirt.

That rules out dark colours for either job. Navy, dark green or black text disappears into its own outline on dark footage. In GetClipMachine the outline is black, which is why our preset colours are all light: white, yellow, lime, green, cyan, pink, orange and red.

Colour pairs that hold up well on most footage:

Text	Highlight	Feels like
White	Green	The familiar default, neutral
White	Cyan	Calm, tech, explainers
Yellow	Pink	Loud, gaming and reaction
White	Yellow	Classic, podcasts and interviews
Lime	Orange	Bold, high energy

Two cautions. Red as the highlight is very visible but reads as a warning; it suits drama and reaction content more than advice. And if your brand colour is dark, use it somewhere else (a logo, a Framed header) rather than in the captions.

Size: big, but one line

A phone in a feed is held at arm's length and watched with half an eye. Captions need to be far bigger than feels right on a laptop. The usual mistake runs the other way, though: making them so big that a caption breaks onto a second line. Two stacked lines jump around as the words change, and they cover twice as much of the picture.

The rule that works is to choose the size first and then fit fewer words per caption, rather than shrinking the text to fit more. At a large size that means two words at a time, sometimes one; at a small size, three.

Which size to pick depends on the footage:

• Large when the picture is busy or the speaker talks fast. Fewer words at once, read at a glance. Good for gaming and reaction clips.
• Medium for most talking heads and podcasts.
• Small when the picture matters: a screen recording, a product, a detailed shot you do not want covered.

GetClipMachine measures every caption against the real font before it renders it, so captions stay on one line at all three sizes. A single word too long for the line (think "internationalization") gets a slightly smaller size for that one caption instead of a second row.

Placement

Each app covers the bottom fifth or so of the screen with its own buttons and text, and the right edge with its action column. Captions along the very bottom, where TV subtitles go, end up underneath that interface. They belong in the lower half of the visible area: under the face, above the app's UI. The safe zone for each platform is written up separately.

Placement is the one part of the style we do not let you change, because it moves with the picture: below the chin on a tight close-up, on the seam in a stacked two-person layout, and under the picture when a screen shot is shown whole.

Keep it the same on every post

A style earns its keep through repetition. Viewers who have seen your yellow-and-pink captions three times start to recognise the fourth clip before they read the handle. That only works if every clip uses the same style, which is the argument for setting it once rather than per clip.

If you run a clipping channel, the same applies to each channel: pick a style per channel and keep it. For clips that should look like a client's brand, see how to brand your clips.

Setting it up in GetClipMachine

1. Open the Brand page in the app.
2. Under Captions, tap a text colour, a highlight colour and a size. The preview on the right shows the result on a real frame. The rainbow circle opens a colour picker for any other colour.
3. Press Save caption style.

Every new clip uses the style, in both Full screen and Framed. Clips you already have keep their old look until you open one and press Apply my caption style, which renders that clip again. This is on every plan, including Free.

What you cannot change yet: the font, the outline colour and the animation. We kept to one heavy font so that every caption can be measured and kept on one line.