What fonts work best for on-screen text?
Clean sans-serif fonts at a generous size; avoid thin weights and tight tracking that break up on screen.
Sans-serif fonts read most reliably on screen, especially over moving, compressed video. Use a medium-to-bold weight rather than a hairline, keep letter-spacing comfortable, and size text large enough to read on a phone. Thin fonts and cramped spacing are the top causes of hard-to-read lower thirds.
How do I keep text readable over any background?
Add a bar, gradient, shadow, or outline so text has contrast against busy or shifting footage.
Video behind your text changes constantly, so give the text its own contrast: a semi-transparent bar or box, a subtle drop shadow, an outline, or a gradient scrim behind the words. White text with a soft shadow over a darkened strip is a dependable default. Never rely on the footage alone to stay dark enough.
Are there color rules for broadcast graphics?
Avoid pure 100% white and fully saturated reds, which can bloom or buzz; keep colors slightly restrained.
For broadcast, extremely bright pure white and fully saturated colors — especially intense reds — can bloom, vibrate, or bleed on some displays and in compression. A common practice is to pull whites slightly down from 100% and avoid the most saturated reds for large areas. For web-only video the rules are looser, but restrained colors still compress more cleanly.
How should I structure the text in a lower third?
A clear hierarchy: the name largest and boldest, the title smaller beneath it.
Give the primary line — usually the person's name — the most visual weight, and set the secondary line (their title or role) smaller and lighter beneath. This hierarchy lets a viewer grasp who's speaking at a glance. Keep it to two short lines; extra text crowds the frame and reduces reading time.