Brand & identity

Free, open-source personality exploration

Brand name

OpenJung

One word. Capital O and J. Keep this spelling in every language.

Canonical website

openjung.org

Use this domain in public links, credits and social profiles.

Short descriptor

Free, open-source personality exploration

Use for an introduction, a directory listing or a project description.

Search context

Jungian personality test · 16 personality types

Describe the experience in plain language. Use MBTI only where the comparison or discussion calls for it.

Open Jung, OpenJUNG and OpenMBTI are not current brand spellings. The older repository and infrastructure names are historical identifiers. OpenJung is an independent project, not an official MBTI assessment or an endorsement by another organization.

Four flat facets, one open center. The four colors refer to E/I, S/N, T/F and J/P. The open center leaves room for the person behind the preferences.

¼ ×

Clear space

Leave at least one quarter of the symbol’s width clear on every side. Keep the mark and wordmark comfortably separated.

16 px

32 px

48 px

Small applications

Use the supplied favicon files at 16–32 px. In an interface, use the symbol at 24 px or larger. App icons retain their supplied backplate and safe area.

• Preserve the square proportions, facet order and open center.
• Use the original colors on a quiet background with enough contrast.
• Keep the symbol flat: no stretching, rotation, extra outlines, gradients or shadows.
• Pair the symbol with the OpenJung wordmark for a first introduction. The symbol alone works in familiar, compact contexts.

A dark, quiet canvas. Warm, readable text. Amber draws attention to the next action; the four dimension colors explain the personality model.

Dimension colors · keep the mapping

Use dimension hues for illustrations, indicators and larger accents. Small text needs a readable foreground. Pair color with a label, and honor high-contrast and color-vision settings.

:root {
  --color-canvas: #0a0a0b;
  --color-canvas-light: #141416;
  --color-cream: #fffef5;
  --color-cream-soft: #e0dfd7;
  --color-cream-muted: #a8a79f;
  --color-accent: #fbbf24;
  --color-dimension-ei: #8b5cf6;
  --color-dimension-sn: #10b981;
  --color-dimension-tf: #f97316;
  --color-dimension-jp: #0ea5e9;
}

Instrument Serif gives headlines and the wordmark their character. Sora keeps navigation, body copy and controls clear.

• Use the display face sparingly. Keep longer reading and interactive labels in the body face.
• For Chinese, Japanese and other scripts, use appropriate local glyphs and fallbacks. Japanese uses Noto Sans JP. Never force Latin letter spacing onto a local script.
• Build with generous space, thin borders and mostly square corners. Keep the hierarchy clear before adding decoration.
• Give controls at least a 44 px target, visible keyboard focus and a reduced-motion experience. Accessibility preferences take precedence over decoration.

Warm, curious and precise. Speak to a person with choices. Explain what a result can suggest and where its limits begin.

One OpenJung identity, with different ways to meet the 16 types. The control is called Appearance: Classic / Cats.

An appearance changes the presentation and fictional character layer. The questions, scoring, assessment version and saved result keep their meaning. The OpenJung name and prism remain the parent identity.

Cats uses artwork from PurrJung to playfully describe human personality preferences. It does not assess a real cat’s personality.

OpenJung is the parent brand. Our projects share curiosity, clear explanations and respect for individual experience, while each keeps its own purpose and visual identity.

Use “An OpenJung project” with a link to openjung.org as the parent credit. Each project states its own privacy, evidence and licensing terms; belonging to this family does not imply shared health records or clinical validation.

Use the current exported assets. The logo is a transparent SVG; icons include their intended background and spacing.

When presenting this project, preserve the name and artwork and link to openjung.org. Do not imply an official partnership or endorsement. Third-party artwork and fonts retain their own licenses; see the repository notices before reuse.