Is the word escuras the same in Brazilian and European Portuguese?

Yes

The word "escuras" is identical in meaning, spelling, and grammar in both Brazilian and Continental Portuguese. The only difference is pronunciation:

• Brazilian Portuguese: The "s" in the syllable "es-" is typically pronounced as a clear [s] sound (as in "snake"). The vowels are generally more open.
• Continental Portuguese: The "s" in the syllable "es-" is usually pronounced as a [ʃ] sound (as in "shoe"), making the word sound like "esh-curas." Additionally, Portuguese vowels are often more closed or even reduced/devoiced compared to the Brazilian accent.

Brazilian Portuguese Examples

1. As cores escuras combinam com o resto da sala. (Dark colors match the rest of the room.)
2. Ela gosta de usar meias escuras no inverno. (She likes to wear dark socks in the winter.)
3. As áreas escuras da floresta são perigosas. (The dark areas of the forest are dangerous.)
4. As sombras escuras apareceram na parede. (The dark shadows appeared on the wall.)
5. Evite usar roupas escuras sob o sol forte. (Avoid wearing dark clothes under the strong sun.)

Continental Portuguese Examples

1. As cores escuras ficam bem com o resto da sala. (Dark colors look good with the rest of the room.)
2. Ela prefere usar meias escuras durante o inverno. (She prefers to wear dark socks during the winter.)
3. As zonas escuras da floresta são perigosas. (The dark zones of the forest are dangerous.)
4. Vi umas sombras escuras na parede. (I saw some dark shadows on the wall.)
5. Evita usar roupas escuras sob o sol forte. (Avoid wearing dark clothes under the strong sun.)