What is 2:3 aspect ratio?
2:3 is a vertical portrait ratio — the inverse of 3:2. It's used for 4×6 inch prints in portrait orientation and is the recommended ratio for Pinterest pins.
When should I use 2:3 vs 3:2?
Use 2:3 for vertical/portrait images and 3:2 for horizontal/landscape. They're the same ratio, just rotated. 2:3 is taller than wide, 3:2 is wider than tall.
Is 2:3 good for phone wallpapers?
2:3 is close but most phones are taller (9:16 or about 2:3.5). For phone wallpapers, 9:16 is a better fit. 2:3 works well for vertical prints and Pinterest.