Three arcs, one dot, one seal
The mark for the C-suite decision agents. A cinnabar seal frames three arcs that compose a C, encircling a single ink dot at the center. It compresses the product's three tenets into one figure: decisions must be sealed and archived, deliberation must be independent yet form one body, and the final call is made by a human.
Design rationale
① One seal — the ultimate act of deciding
The site's accent color #b14b3a is cinnabar to begin with — the color of traditional seal ink.
And "stamping a seal" is precisely the ultimate act of deciding in the Chinese idiom: to make the call, apply the seal, take effect. One of this product's core claims is versioned freezing — each verdict generates an immutable snapshot for later verification.
A seal naturally carries this meaning: once stamped, it is an unalterable version. The outer frame takes the rounded square of a seal; relief cut (outlined) as the primary form, intaglio (fully filled, reversed) as the reversed form — corresponding exactly to the two carving methods of seal engraving.
② Three arcs composing a C — three seats, independent yet deliberating
The C of C-suite is formed by three broken arc segments: the three arcs correspond to three seats — Boss (CEO), MBA Brand (CMO), OAF (CFO); the arcs are broken because the judges score independently and never see one another (no comparing notes before deliberation is a hard rule of this methodology); together they read as one C — deliberating into one body, one skeleton. The C opens to the right at an 80° gap — an open judgment, not a closed loop of self-justification.
③ One ink dot at the center — the anchor, the human in the loop
At the center sits a single ink-colored dot — the only element in the whole figure that is not cinnabar. It is the anchor: the person who ultimately presses the button. The machine (the cinnabar pipeline) revolves around the human (the ink dot), not replacing the human's final call. Visually it also gives the C a "point of view," making the whole mark faintly resemble an eye — scrutinizing, reviewing.
Structure
- Seal frame: 120 × 120, corner radius 24, stroke 7
- Arc circle: center (60, 60), radius 30, stroke 9, round caps
- Three arcs: 85.3° each, 12° gap between segments
- C opening: to the right, 80° gap
- Center dot: radius 6.5, ink color (the only one in the figure)
Variants
Color
Shares one palette with the whole of zhanglu.net; the logo introduces no new colors.
Usage guidelines
- Minimum size: mark short edge ≥ 20px (the center dot still legible); lockup width ≥ 180px
- Clear space: at least 1/6 of the mark's width on all sides (about one center-dot diameter)
- ❌ Do not change the colors — only cinnabar / ink / reversed are allowed
- ❌ Do not split the three arc segments and use them separately
- ❌ Do not remove the central ink dot
- ❌ Do not add shadows, gradients, or outline effects
- ❌ Do not tilt or distort it
- ❌ Always use the intaglio version on dark backgrounds
Downloads
- c-suite-mark.svg — Primary · relief cut (For light backgrounds)
- c-suite-mark-solid.svg — Intaglio · reversed (Dark backgrounds / heavy blocks)
- c-suite-mark-mono.svg — Monochrome · ink (Black-and-white print / grayscale)
- c-suite-lockup.svg — Horizontal lockup (mark + wordmark + tagline)
All hand-written SVG, no raster dependencies. Design doc in the repo at docs/brand/c-suite-logo.md.