System
The brand, in public
Everything needed to use the Eyenus identity correctly — construction, color, type, voice, and the files themselves.
The mark
An eye built from a leaf-arc and a radiant sun
A leaf-like arc, open on the left where the light enters, cradling a radiant sun toward center-right — eight primary rays and eight finer secondary rays, a lens-flare cross on the horizontal light axis, and a bright-to-dark green gradient along the sweep (ADR-0011). The 2005 eye, twenty-five years wiser, now luminous.
| Variant | Preview | Use | Minimum size |
|---|---|---|---|
| Primary mark |   | Default identity, standalone | 32 px height (below that, the ray/flare detail collapses; prefer the monogram at smaller sizes) · 10 mm width in print |
| Horizontal lockup |   | Headers, partner contexts, wide formats | 96 px width |
| Vertical lockup |   | Centered/stacked contexts, covers | 80 px height |
| Wordmark |   | When the mark is already present | 72 px width |
| Monogram |   | Avatars, watermarks, small square contexts — leaf arc cradling the sun | 16 px |
Construction and clear space
The sun doctrine
Seeing versus looking: a present sun is identity at rest; its absence, the leaf rotating alone, is the instrument searching (ADR-0011, succeeding the pupil doctrine).
Seeing
Sun present. Every static identity use: mark, monogram, favicon, app icon.
Looking
Sun absent. Exists only in motion, as the loading indicator — never shipped static.
A present sun means the instrument sees; its absence, in motion, means it is searching (docs/adr/0011-luminous-mark.md, succeeding docs/adr/0006-pupil-doctrine.md). The two states are one asset: the reveal animation ends where the mark begins. See it animate at /playground.
Misuse
Do
- Use the generated SVG masters exactly as exported — never redrawn.
- Keep the sun present, centered in the leaf’s cradle, on every static identity use.
- Keep the horizontal flare axis fixed on every use.
- Apply only the two documented colorways (signal-on-dark, green-on-light) or the mono exception.
- Respect the 1× sun-diameter clear space measured from ink bounds, with nothing else inside it.
Don’t
- Removing or detaching the sun from the leaf-arc (the sun is core identity, not a removable accent — ADR-0011).
- Adding or removing rays — the ray count (8 primary + 8 secondary) is fixed geometry, not decoration to taste.
- Rendering glow via CSS/SVG filters (feGaussianBlur or similar) — glow is pre-baked gradient/duplicate-path data only (ADR-0013).
- Rotating the mark — the horizontal flare axis is identity (ADR-0011), replacing the retired 45° aperture orientation.
- Closing the leaf’s left opening, or "completing" it into a ring.
- Shipping the bare leaf (no sun) as static identity — that form is reserved, in motion, for the loading indicator (ADR-0011).
- Stretching, skewing, or altering the almond ratio.
- Re-coloring outside the two documented colorways plus the mono exception.
- Pairing the mark with the old "Solutions" descriptor or any tagline inside the clear space.
- Outlining filled forms or filling the wordmark’s stroke skeletons.
- Recreating the mark by eye — geometry comes from the generator, always.
The signal
The green, re-anchored and luminous
The identity green re-anchors to a brighter, more saturated #7CFF00 (ADR-0012) — the pixel-measured 2005 lime is preserved exactly, on record as color.heritage.lime, not deleted.
color.brand.signal = #7cff00
The luminous re-anchor (ADR-0012): the identity green moved from the measured 2005 lime to this brighter, more saturated anchor under the founder’s directive. Reserved for the mark and identity accents on dark surfaces — never body text, never a background, never on light surfaces (there it becomes color.green.600).
The 2005 measurement is preserved, not deleted: color.heritage.lime = #76e00e — a provenance token pointing at the immutable HERITAGE.md sample; nothing in the v3 mark or UI consumes it directly.
color.green
color.graphite
color.solar
A second hue, scoped to the mark and the Arc: the sun is inside the mark itself (ADR-0011), so solar travels wherever identity does — nav, favicon, footer — plus Arc storytelling. The boundary still holds: never a UI color, never text, never a state, never decoration outside the mark or the Arc.
From docs/adr/0016-solar-scope-second-reading.md (supersedes docs/adr/0010-solar-accent.md)
Proportion law
~80% graphite, ~15% off-white/text, ~5% green. Green is a signal, not a paint — when everything is green, nothing is seen.
Type
Three faces, three jobs
Display
Aa
font.family.display
Space Grotesk Variable
H1–H3, hero copy, pull quotes
Text
Aa
font.family.text
Inter Variable
Body, UI, H4–H6, captions
Mono
Aa
font.family.mono
JetBrains Mono Variable
Code, data, dimensions, token names
Seeing is only the beginning.
Eyenus builds instruments of perception — technology that turns light into understanding.
color.brand.signal = #7cff00
Voice
An instrument maker explaining an instrument
Exact, calm, and quietly certain. The voice never performs enthusiasm; it earns trust by being right and being brief.
Calm
calm ↔ urgent
90% calm. Urgency appears only in incident/safety copy.
Precise
precise ↔ evocative
75% precise. Evocation is allowed one sentence per surface, and it must be earned by the precision around it.
Warm
warm ↔ formal
60% warm. Plain human words, no corporate distance — but never chummy, never jokes at the reader’s expense.
| Say | Don’t say | Why |
|---|---|---|
| instrument, system, platform | solution | Retired with the 2005 descriptor |
| build, make, engineer | craft, curate | Instrument maker, not boutique |
| see, understand, illuminate | leverage, unlock, empower | Arc vocabulary over MBA vocabulary |
| the five lights, the arc | steps, stages, phases (of the arc) | The arc has five states and four transitions |
| precise, measured | cutting-edge, state-of-the-art | Claims, not postures |
| people, engineers, teams | users (in marketing), stakeholders | Human words for humans |
| shows its work | AI-powered magic | Pillar 5: light reveals |
| begins, ships, is available | launches 🚀, drops | Calm is confidence |
Iconography
A stroke system, not a second logo
Twelve glyphs carrying the mark’s geometric-humanist language — round terminals, mathematical construction — into functional UI.
Motion
The reveal and the loop
The brand’s one theatrical entrance, and the instrument reading that precedes it. Play both at /motion.
Files
Everything needed to use the mark correctly
- Primary mark (signal on dark)
- Primary mark (green on light)
- Horizontal lockup (signal on dark)
- Monogram (signal on dark)
- Wordmark (green on light)
- Favicon set (ICO + PNG)
- App icon (1024px PNG)
SVG is the master format. Illustrator, Affinity, and Figma import these masters losslessly — no.ai/.fig binaries are maintained; the generator is the source of truth.