TiddlyWiki logo showing a black silhouette of a standing cat with tail up.
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TiddlyWiki

TiddlyWiki is an open-source personal wiki and non-linear notebook contained in a single HTML file, with content organized into small units called tiddlers. It is distributed and documented through the project's own site and public code repository.
TiddlyWiki is an open-source personal wiki and non-linear notebook designed to be contained in a single HTML file, with content organized into small units called tiddlers. It is distributed and documented through the project’s own site and public code repository. [1] [2] Logo Index preserves an archived mark associated with the project, but documentation of the mark’s designer, date of introduction, or design rationale is not available in the cited sources.

Logo Index is an independent educational archive covering logos, visual identities and graphic design history. All trademarks and brand assets remain the property of their respective owners.

Logo data

Measured from the original SVG file on 30/09/2026.

Colors

Pure black, single color.

  • #000000Black, 100%

    RGB 0, 0, 0; CMYK 0, 0, 0, 100

    White text 21.0:1 (passes AA)

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Backgrounds and sizes

Contrast and color difference

Compared with Software

754 measured Software logos

Only 8% of Software logos in the archive are symbols.

  • Main color black33%
  • Symbol8%
  • Single color37%

From measured files, not tags. Updated 28/10/2026.

Structure

Logo type
SymbolClassified by AI
Proportions
1.6 : 1Horizontal
Ink coverage
43%57% empty space inside the outline
Symmetry
Asymmetric53% left-right match
Outline
Free-formOverall silhouette
Complexity
Moderate1 shapes, about 148 points

Visual description

Classified by AI

Symbol shows
Cat silhouette
Style
Flat, minimal
Layout
Symbol on its own

More black Software logos

Same main color, same industry

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