Why 50% grey?
Mid-grey is a standard test pattern for banding and gamma on consumer displays.
A 50% grey fullscreen is a neutral reference for banding, gamma, and uniformity tests between pure white and black.
Alterna branco, preto, vermelho, verde e azul a cada 5 s. Melhor em ecrã inteiro. Todos os testes de ecrã →
Predefinição de resolução
Mid-grey reveals horizontal or vertical banding that white or black may hide.
50% grey is a common midpoint for evaluating gamma response.
Neutral grey backgrounds reduce distraction during slides or reviews.
A 50% grey (#808080) target sits midway in 8-bit sRGB — ideal for spotting step-wise banding in lower bit-depth panels.
Reference grey alongside white and black for a three-point quick calibration visual check.
Abrir fundo white em ecrã completo
Abrir fundo black em ecrã completo
Abrir fundo red em ecrã completo
Abrir fundo green em ecrã completo
Abrir fundo blue em ecrã completo
Abrir fundo yellow em ecrã completo
Abrir fundo orange em ecrã completo
Abrir fundo pink em ecrã completo
Abrir fundo purple em ecrã completo
Mid-grey is a standard test pattern for banding and gamma on consumer displays.
Yes — export PNG at your preferred resolution.
Same color — we use grey in URLs and titles for consistency.
Use white and black first; grey helps with banding and tint issues.