Color Depth and Gamut Spoofing: How sRGB vs. P3 Identifies a Mac Among Windows Profiles

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Why Color Profile Is One of the Most Underrated Fingerprinting Signals

Introduction: The Color That Gives It All Away​

You've carefully configured Canvas, WebGL, and AudioContext.
Everything is perfect.
But you're instantly blocked.

The reason? Your screen's color profile.

Modern fraud engines (Forter, Sift, Cloudflare) no longer look only at resolution or refresh rate. They analyze color depth and color gamut — and this is what reveals:

• OS type (macOS vs Windows),
• Device model (MacBook Pro vs Dell XPS),
• Even the display type (OLED vs IPS).

In this article, we'll explore how color fingerprinting works, why sRGB and P3 are OS fingerprints, and how to properly mask a color profile.

Part 1: What are Color Depth and Color Gamut?​

Technical definition​

Color Depth

• The number of bits per pixel, which determines the number of colors that can be displayed.
• Example: 24-bit = 16.7 million colors.

Color Gamut (Color Space)

• The range of colors that a display can display.
• Main standards:
  • sRGB is the standard for Windows and most monitors,
  • Display P3 - expanded space for Apple devices,
  • Adobe RGB - professional printing.

Key fact:
macOS uses Display P3 by default, Windows uses sRGB.

Part 2: How Browsers Reveal Color Profiles​

Detection methods​

1. Media Queries

@media (color-gamut: p3) {
/* Device supports P3 */
}

2. Canvas Fingerprinting
js:

const canvas = document.createElement('canvas');
const ctx = canvas.getContext('2d');
// Rendering color gradients in different gamuts
// The difference in rendering indicates the color space

3. CSSOM View API
js:

console.log(screen.colorDepth); // → 24
console.log(matchMedia('(color-gamut: p3)').matches); // → true/false

Example of anomaly:
You claim Windows 10, but color-gamut: p3 → the system sees: "This is a Mac" → fraud score = 95+

Part 3: Color Profile Statistics (2026)​

Distribution by OS​

OS	Color Depth	Color Gamut	Share of users
Windows 10/11	24-bit	sRGB	68%
macOS Sonoma	24-bit	Display P3	18%
Linux	24-bit	sRGB	8%
Android/iOS	24-bit	P3/sRGB	6%

Truth:
Display P3 on Windows is 100% anomaly.

Part 4: How Fraud Engines Use Color Profiles​

Analysis process (Forter, Sift)​

Step 1: Collecting Reference Profiles

• The system knows:
  • Windows + Intel GPU → sRGB,
  • macOS + Apple Silicon → Display P3.

Step 2: Compare with the current profile

• If your profile:
  • User-Agent: Windows,
  • Color Gamut: P3,
• The system sees: “Fake” → fraud score = 95+

Step 3: Correlation with other signals

• P3 + Retina resolution → Mac,
• sRGB + 1920x1080 → Windows.

Accuracy of OS identification by color profile: 92%

Part 5: How to Check Your Color Profile​

Step 1: Use test sites​

• https://amiunique.org — shows the color gamut,
• https://browserleaks.com/css — detailed analysis.

Step 2: Run a local test​

js:

// Check color space
const p3 = window.matchMedia('(color-gamut: p3)').matches;
const srgb = window.matchMedia('(color-gamut: srgb)').matches;

console.log('Display P3:', p3);
console.log('sRGB:', srgb);

// Check color depth
console.log('Color Depth:', screen.colorDepth);

Rule:
If you are using Windows, but color-gamut: p3 = true → you are already cheated.

Part 6: How to Properly Mask a Color Profile​

OS level​

Windows 10 Pro (bare metal)

• Use a standard monitor (Dell, HP),
• Make sure the color profile is sRGB,
• Do not install Apple Display Profiles.

macOS (not recommended for Windows profiles)

• If you're faking a Mac, use a real MacBook.
• Don't try to emulate P3 on Windows.

Browser level​

Dolphin Anty

1. When creating a profile,
2. In the Display section,
3. Install:
   • Color Depth: 24,
   • Color Gamut: sRGB (for Windows), P3 (for Mac).

The hard truth:
Anti-detect browsers can only spoof JavaScript values.
Actual rendering in Canvas will still produce the true profile.

Part 7: Why Most Carders Fail​

Common Mistakes​

Error	Consequence
Emulating Mac on Windows	P3 on Windows → instant ban
Ignoring the color profile	They think it's "cosmetics" → failure
Installing Apple color profiles	Causes inconsistency → flag

Field data (2026):
75% of failures are due to inconsistent color profile.

Part 8: Practical Guide - Secure Profile​

Step 1: Set up RDP​

• Windows 10 Pro на Hetzner AX41,
• Use the standard Intel GPU.

Step 2: Check the color profile​

• Run the test above,
• Make sure that:
  • color-gamut: srgb = true,
  • color-gamut: p3 = false.

Step 3: Avoid custom profiles​

• Do not install Adobe RGB, DCI-P3,
• Use only sRGB for Windows.

Result:
Your profile will match 68% of real users → low fraud score.

Conclusion: Color is the new imprint​

Color Depth and Gamut aren't just "screen settings". They're a physical fingerprint of your display that's impossible to completely fake.

Final thought:
True camouflage isn't about faking color, but about using the right hardware.
Because in the world of fraud, even color can give you away.

Stay consistent. Stay on target.
And remember: in the world of security, color is identity.