Brand Preflight
Check a logo file before it goes live: grade it, list its colours and test contrast before you make icons, social images or a brand handoff. Everything runs in this browser. Need only the score? Use the logo grader.
- 01GradeFile and small-size readiness
- 02ExtractDominant HEX palette
- 03TestEditable WCAG contrast
Uploaded logo
Waiting for analysis
This score checks technical versatility, not originality, trademark safety, or brand value.
What the grader found
Logo palette
Near-identical shades are merged into distinct colours. Select a swatch to copy its HEX value.
WCAG contrast pair
Enter a 3- or 6-digit HEX value, such as #1B3A6B.Enter a 3- or 6-digit HEX value, such as #1B3A6B.Private processing: static SVG, PNG, JPEG or WebP; up to 16 megapixels and 8,192 pixels per side. SVG is sanitized and rendered in this tab. Files and analysis results stay in this tab. Source limit: 10 MB. Palette values are estimates from this file, not official brand colours. The grade is a technical heuristic, not an AI opinion, accessibility certification or originality verdict.
Technical brand-asset QA
Use the results to catch low resolution, missing transparency, uncontrolled color complexity, weak light or dark combinations, excessive file weight, and small-size legibility problems before handoff.
Legal or creative approval
A strong technical score does not prove originality, ownership, trademark availability, accessibility in every final context, or permission to publish. Those decisions require appropriate human review.
Questions about Brand Preflight
Is my logo uploaded to SimilarLogo?
No. The file is read and analysed by scripts running in this browser tab. The tool makes no upload request and does not store the image or the results. Choosing “Analyze another” or closing the tab discards them.
What does Brand Preflight check?
It grades the file (resolution, measured 16 px legibility, colour count, main-colour contrast, transparency, format and file weight), lists up to six distinct colours with approximate shares, and lets you test any colour pair against WCAG contrast thresholds.
Does Brand Preflight check trademark safety?
No. It checks the technical readiness of a file only. It does not search trademark registers or judge originality. For a formal search, use an official register and ask a qualified adviser.
WIPO Global Brand Database · USPTO trademark search · DPDT Bangladesh