Screen Test

Display full-screen colors and patterns to check for dead pixels, color accuracy, and uniformity.

Tip: Click any tile to enter full-screen. Press ESC to exit, ← / → to cycle through the basic colors, Space to invert.

Primary colors

Red · #ff0000

Green · #00ff00

Blue · #0000ff

White · #ffffff

Black · #000000

Secondary / common

Cyan

Magenta

Yellow

50% Gray

Silver

Orange

Purple

Dark Green

Patterns

Checker (1×1 px)

H-Stripes

V-Stripes

Black→White

R · G · B bars

Custom color

Or paste a hex code (e.g. #a1c4ff).