🟦 Pure #0000FF Calibration

Pure Blue Screen (#0000ff)

Launch a 100% full-screen pure blue calibration display to inspect blue sub-pixel luminance, OLED panel aging, and color balance.

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Technical Uses of Pure Blue (#0000FF) Calibration Screens

Blue light emitted from displays operates in the high-energy visible (HEV) spectrum (400nm to 490nm). A fullscreen pure blue display enables crucial panel diagnostics:

OLED & QD-OLED Sub-Pixel Degradation: Organic blue emitters have a shorter operational half-life than red and green organic compounds. A fullscreen blue test reveals differential wear (burn-in) caused by static taskbars or UI elements.
Color Tint & Panel Uniformity: Blue screen testing verifies that edge-lit and direct-lit LED backlights provide even spectral distribution across all display quadrants.

Tools Suite#00FF00

Green Screen (#00FF00)

Pure chroma key green screen for streaming and sub-pixel tests.

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White Screen (#FFFFFF)

Inspect panel brightness uniformity and corner vignetting.

Display Suite8 Colors

Dead Pixel Tester

Inspect panels with 8 primary high-contrast color screens.

Hardware Knowledge Base

Frequently Asked Questions

Technical answers to common hardware, refresh rate, and browser diagnostic questions.

Why use a pure blue screen for monitor calibration?

A pure #0000ff blue screen isolates the blue sub-pixels of your display. Because blue OLED sub-pixels degrade faster than red and green, a blue screen is the primary tool for testing OLED burn-in and blue channel luminance decay.

How do I check for stuck yellow sub-pixels?

On a pure blue screen, any stuck red or green sub-pixels will mix with blue, creating visible yellow or cyan discolored dots across the panel.