Zero Cookie Tracking & LocalStorage Swatch Persistence
Paint Undertones Guide operates with a strict zero-tracking architecture. All swatch selections, room calculations, and comparison palettes persist exclusively in client-side local storage with zero third-party data tracking.
When you explore paint swatches, compare Delta-LRV values, or calculate gallon requirements in our workbench, those preferences are stored strictly in your browser's private Web Storage API under the key pu_swatch_tape_v1. This data never traverses an external network, is never synchronized to a remote server, and can be purged instantly by clearing your browser cache.
Data Disclosure & Third-Party Telemetry Absence
Our digital platform does not embed invasive behavioral advertising pixels, social media tracking beacons, or cross-site tracking scripts. Server access logs capture only standard, ephemeral HTTP connection headers required for Cloudflare DDoS mitigation and network edge delivery.
For questions regarding our privacy architecture or to learn more about our color research, return to the Sherwin-Williams paint colors and undertones hub or review our testing methodology.
Colorimetry Scope & Client-Side Privacy
Our zero-tracking policy safeguards client interactions across all evaluated Sherwin-Williams formulas, including Alabaster SW 7008, Accessible Beige SW 7036, Repose Gray SW 7015, Pure White SW 7005, Greek Villa SW 7551, Agreeable Gray SW 7029, Shoji White SW 7042, Iron Ore SW 7069, Sea Salt SW 6204, Natural Linen SW 9109, High Reflective White SW 7757, Peppercorn SW 7674, Tricorn Black SW 6258, and Pewter Green SW 6208, alongside Benjamin Moore and Behr comparative datasets.
Client calculations of Light Reflectance Value (LRV), Delta-E Color Difference, and Architectural Trim Contrast Ratio across North-Facing Exposure (6500K), South-Facing Exposure (3000K), East-Facing Exposure (4000K), and West-Facing Exposure (3500K) remain confidential on user devices. Metamerism simulations, Correlated Color Temperature (CCT) profiles, ASTM C609 Reflectance Standard, and CIE L*a*b* Color Space values across Flat Ceiling Paint, Eggshell Finish, Satin Finish, Semi-Gloss Trim, and Samplize Peel-and-Stick sampling sessions generate zero server-side telemetry.