Color & Calibration
Wide Color Gamut (P3) Test
Hidden logos in P3 colors that only a wide-gamut screen can show.
Checking browser…Checking screen…
▶ Start full-screen testRed — can you see the logo?← / → or tap the sides to switch · Esc to exit
How to use
- 1Click Start and look at each color full-screen.
- 2On a wide-gamut screen you'll see a logo inside each color — a more intense ring around a square.
- 3On a standard sRGB screen the logo is invisible, because both colors are clipped to the same shade.
- 4Check the chips above the test to see what your browser reports, then press Esc to exit.
FAQ
I can't see the logo — is my screen faulty?
Not at all. Most office monitors and many laptops are sRGB, which is accurate for the web. The logo only appears when the screen, the operating system and the browser all handle wide color.
Which colors show it best?
Reds and greens: Display P3 extends furthest beyond sRGB there. Blue shows the smallest difference, so a faint logo on blue is normal.
Tips
- Many wide-gamut monitors have an sRGB mode that clamps colors — switch it off for this test.
- View it in a dim room; the difference is subtle in bright light.
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Related guides
Learn more about what this test reveals and how to act on the results.