Plasmate Brand Guide
"The living information, the plasmate, replicates itself - not through information or in information - but as information." -- Philip K. Dick, VALIS (1981)
Origin Story
The name Plasmate comes from Philip K. Dick's novel VALIS, where the plasmate is described as "living information" - an energy form that crosses between realities, transforms raw matter into structured intelligence, and replicates itself through contact with human consciousness.
This is exactly what Plasmate the browser engine does: it transforms the raw, chaotic HTML of the web into a Semantic Object Model - living, structured information that AI agents can understand, reason about, and act upon.
Plasma is the fourth state of matter. Agents are the fourth state of the web.
| State | Matter | Web |
|---|---|---|
| 1st | Solid | Static HTML |
| 2nd | Liquid | Dynamic (JavaScript) |
| 3rd | Gas | Real-time (WebSockets) |
| 4th | Plasma | Agentic (SOM) |
The "mate" suffix carries double meaning: a companion (your agent's browser companion) and the act of bonding (the plasmate "crossbands" with the agent, just as Dick described it bonding with human consciousness).
Brand Personality
Pioneer. We are building the Netscape of agentic browsers. The first to reject CDP and DOM as the interface between agents and the web.
Precise. This is an engine, not a wrapper. Every design decision reflects engineering discipline.
Open. Apache 2.0. The standard belongs to everyone. The brand should feel institutional enough to trust, not corporate enough to fear.
Alive. The plasmate is living information. The brand should feel energetic, luminous, present - never cold or sterile.
Color System
Philosophy
Plasma in nature is not one color. It is determined by the gas being ionized and the energy level of the excitation. Lightning is blue-white (nitrogen ionization at extreme temperature). Neon is amber-red. Solar corona is golden-white. The Plasmate palette draws from these real plasma emission colors.
No purple. No gradients. Flat, confident, scientific.
Primary Palette
| Name | Hex | RGB | Usage |
|---|---|---|---|
| Plasma White | #F0EDE8 |
240, 237, 232 | Backgrounds, body text areas. Warm white - not blue-white, not stark. Like the afterglow of an ionized field. |
| Core Black | #0D0D0D |
13, 13, 13 | Primary text, dark backgrounds, terminal UI. Near-black with warmth. |
| Ember | #E8853A |
232, 133, 58 | Primary brand color. The color of neon plasma - ionized gas at mid-energy. Used for the wordmark, primary CTAs, key accents. |
Secondary Palette
| Name | Hex | RGB | Usage |
|---|---|---|---|
| Arc | #3D8FD4 |
61, 143, 212 | Secondary accent. The color of an electric arc - nitrogen plasma at high energy. Used for links, interactive states, code highlights. |
| Ion | #D4C5A0 |
212, 197, 160 | Tertiary. Warm sand/parchment tone. Backgrounds, cards, subtle dividers. The color of low-energy plasma glow. |
| Ash | #6B6560 |
107, 101, 96 | Muted text, captions, borders. Warm gray - the residue after plasma discharge. |
| Corona | #F5C842 |
245, 200, 66 | Highlight/attention only. The solar corona. Use sparingly for badges, warnings, "new" tags. |
Dark Mode
| Name | Hex | Usage |
|---|---|---|
| Void | #111110 |
Dark background |
| Deep | #1A1918 |
Cards, elevated surfaces |
| Smoke | #2A2825 |
Borders, dividers |
| Dim | #8A8480 |
Muted text in dark mode |
Usage Rules
- Ember is the signature. When you see that warm orange on a dark field, you should think Plasmate. It should appear on every page, but not dominate.
- Arc is functional. Blue is for clickable things, focused states, and code. It is not decorative.
- Never use gradients. Flat color only. A gradient says "startup trying to look cool." A flat field of Ember on Core Black says "we built a browser engine."
- Corona is rare. It exists for moments of delight or urgency. If everything is golden, nothing is.
- White space is structural. Plasmate design uses generous whitespace. The content breathes.
Typography
Philosophy
Plasmate is infrastructure. The typography should feel engineered, not designed. We avoid Inter (ubiquitous to the point of invisibility), geometric sans-serifs that feel like SaaS dashboards, and anything with "startup energy."
Type Stack
Primary: Space Grotesk
- Proportional sans-serif derived from Space Mono
- Open source (SIL OFL), designed by Florian Karsten
- Has a mechanical, engineered quality without being cold
- Distinctive letter shapes (the 'a', the 'g') give it identity
- Use for: headlines, navigation, UI labels, the wordmark lockup
Secondary: IBM Plex Mono
- Monospaced, designed for IBM's systems identity
- Open source (SIL OFL)
- Carries the weight of infrastructure heritage
- Use for: code blocks, terminal output, technical specs, element IDs, protocol names
- Also use for small data labels, version numbers, and timestamps
Body: IBM Plex Sans
- Pairs with IBM Plex Mono from the same family
- Open source (SIL OFL)
- Highly readable at body sizes, neutral but not generic
- Use for: documentation, long-form text, descriptions, README content
Type Scale
Display: Space Grotesk Bold 48px / 56px line
H1: Space Grotesk SemiBold 36px / 44px line
H2: Space Grotesk Medium 28px / 36px line
H3: Space Grotesk Medium 22px / 30px line
Body: IBM Plex Sans Regular 16px / 26px line
Body Small: IBM Plex Sans Regular 14px / 22px line
Caption: IBM Plex Sans Regular 12px / 18px line
Code: IBM Plex Mono Regular 14px / 22px line
Code Small: IBM Plex Mono Regular 12px / 18px line
Label: Space Grotesk Medium 11px / 16px line, UPPERCASE, 0.08em tracking
CSS Implementation
@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;500;600&family=IBM+Plex+Sans:wght@400;500;600&display=swap');
:root {
--font-display: 'Space Grotesk', system-ui, sans-serif;
--font-body: 'IBM Plex Sans', system-ui, sans-serif;
--font-mono: 'IBM Plex Mono', 'Menlo', monospace;
}
Pixie Dust: The Particle System
Concept
The "pixie dust" is Plasmate's signature visual texture. It represents ionized particles - the fundamental unit of plasma. When matter transitions to the plasma state, atoms lose electrons and become a field of charged particles. This is what we visualize.
Implementation
Dot Field - A sparse, randomized grid of small circles (2-4px) at varying opacities (0.08-0.25) placed on dark backgrounds. The dots are always Ember (#E8853A) or Plasma White (#F0EDE8).
Rules:
- Dots are circular, never other shapes
- Size range: 2px to 4px diameter
- Opacity range: 0.08 to 0.25 (barely visible to faintly present)
- Density: sparse. Think starfield, not confetti.
- Distribution: pseudo-random with clustering bias toward edges
- Never animate on marketing pages (respect user motion preferences)
- On interactive surfaces (demos, playground): subtle drift at 0.1px/frame
Emission Lines - Thin horizontal or vertical lines (1px, Ember at 0.12 opacity) that suggest spectral emission lines from plasma discharge. Used as section dividers or background texture on hero sections.
Rules:
- Always 1px width
- Always Ember color at low opacity (0.08-0.15)
- Horizontal preferred; vertical only in sidebar contexts
- Spacing: irregular, clustered in groups of 2-4 with large gaps between
- Never more than 5-7 lines visible at once
Ionization Border - A subtle particle scatter effect along the edges of cards or containers. Small dots (1-2px) that appear to be dispersing from the edge of a surface. Suggests matter transitioning states at the boundary.
Rules:
- Only on key interactive cards (not every card)
- Particles scatter outward from the card edge
- 8-15 particles per edge
- Fade to 0 opacity within 20px of the card edge
- Use on: hero cards, feature highlights, the "SOM output" preview
Where to Use Pixie Dust
| Context | Technique | Density |
|---|---|---|
| Hero background (dark) | Dot field + emission lines | Medium |
| Documentation | None | None - docs are clean |
| Code examples | Subtle dot field behind code block | Very low |
| Marketing cards | Ionization border on hover | Low |
| CLI / terminal screenshots | Emission lines as scan lines | Very low |
| 404 / empty states | Dense dot field (the void) | High |
| Loading states | Converging dot animation | Medium |
Logo
The Mark
The Plasmate mark is a stylized "P" whose vertical stroke disperses into particles at the top - matter transitioning into plasma. The letter form is geometric, drawn from Space Grotesk's proportions but simplified for icon use.
The dispersion effect at the top of the P is the brand's pixie dust rendered at mark scale: 5-8 small circles breaking away from the letterform, decreasing in size and opacity as they scatter upward and rightward.
Lockup Variants
| Variant | Usage |
|---|---|
| Full lockup | Mark + "PLASMATE" wordmark (Space Grotesk SemiBold, uppercase, 0.06em tracking) |
| Compact | Mark + "plasmate" wordmark (Space Grotesk Medium, lowercase) |
| Icon only | The P mark alone. For favicons, app icons, social avatars. |
Color Variants
| Context | Mark | Wordmark | Background |
|---|---|---|---|
| Primary (dark bg) | Ember | Plasma White | Core Black / Void |
| Primary (light bg) | Ember | Core Black | Plasma White |
| Monochrome (dark bg) | Plasma White | Plasma White | Core Black |
| Monochrome (light bg) | Core Black | Core Black | Plasma White |
Clear Space
Minimum clear space around the full lockup: the width of the "P" mark on all sides. For the icon only: half the mark width.
Don'ts
- Do not rotate the mark
- Do not apply gradients to the mark
- Do not change the dispersion direction (always up-right)
- Do not use the mark smaller than 16px (switch to a simplified version without particles below 16px)
- Do not place the mark on busy photography or patterned backgrounds
- Do not outline the mark
- Do not animate the mark dispersion without explicit brand team approval
Voice and Tone
Writing Principles
Be direct. "Plasmate compiles HTML into a Semantic Object Model." Not "Plasmate leverages cutting-edge AI to revolutionize how agents interact with the web."
Be specific. "10.4x compression on Wikipedia. 4ms per page." Not "blazing fast performance."
Be honest about scope. "v0.1 does not execute JavaScript dynamically" is better than silence. Open source trust is built on honesty.
Use the metaphor sparingly. The plasma/fourth-state metaphor is powerful in introductions and keynotes. In documentation, just be clear.
Naming Conventions
| Thing | Name | Style |
|---|---|---|
| The product | Plasmate | Capital P, no "the" |
| The output format | SOM (Semantic Object Model) | Acronym, always capitalized |
| The protocol | AWP (Agent Web Protocol) | Acronym, always capitalized |
| The CLI commands | plasmate fetch, plasmate serve |
Monospace, lowercase |
| The organization | Plasmate Labs | Two words, both capitalized |
| Element IDs | e_a1b2c3d4e5f6 |
Monospace, always with e_ prefix |
| Session IDs | s_abc123 |
Monospace, always with s_ prefix |
Taglines
Primary: The browser engine for agents.
Technical: HTML in. Semantic Object Model out.
Philosophical: The fourth state of the web.
For developers: Drop-in Puppeteer replacement. 10x less tokens.
Application Examples
GitHub README Header
[P mark, Ember on transparent]
# plasmate
The browser engine for agents.
HTML in. Semantic Object Model out.
Dark background. Mark left-aligned. Title in Space Grotesk SemiBold. Subtitle in IBM Plex Sans. Dot field texture at very low opacity behind the header area.
Documentation Site (docs.plasmate.app)
- Sidebar: Core Black background, Plasma White text, Ember for active section
- Content: Plasma White background, Core Black text
- Code blocks: Void background, syntax highlighted with Arc for keywords and Ember for strings
- Navigation: Space Grotesk Medium, 14px
- Body: IBM Plex Sans Regular, 16px
Terminal / CLI Output
- Background: Core Black
- Standard output: Plasma White
- Success messages: Ember
- URLs and paths: Arc
- Metrics and numbers: Corona
- Errors:
#D4443A(a warm red, not pure red) - Version strings: IBM Plex Mono
Social / Open Graph Cards
- Background: Core Black
- Mark: Ember, centered or left-third
- Title: Space Grotesk SemiBold, Plasma White
- Subtitle: IBM Plex Sans, Ash
- Dot field: subtle, 0.08-0.12 opacity, Ember particles
File Formats and Assets
Deliverables Needed
- SVG mark (all color variants)
- SVG full lockup (all color variants)
- PNG mark at 16, 32, 64, 128, 256, 512, 1024px
- Favicon set (ICO + PNG)
- Open Graph image template (1200x630)
- Twitter card template (1200x600)
- GitHub social preview (1280x640)
- Dot field SVG pattern tile (repeatable)
- Emission line SVG pattern tile
- Color swatch file (ASE, CLR)
Repository Location
All brand assets live in the plasmate repo under brand/:
brand/
mark/
plasmate-mark-ember.svg
plasmate-mark-white.svg
plasmate-mark-black.svg
lockup/
plasmate-lockup-dark.svg
plasmate-lockup-light.svg
icons/
favicon.ico
icon-16.png ... icon-1024.png
social/
og-default.png
twitter-card.png
github-social.png
patterns/
dot-field.svg
emission-lines.svg
colors/
plasmate-palette.ase
Quick Reference Card
COLORS
Ember: #E8853A Primary brand
Arc: #3D8FD4 Links, interactive
Corona: #F5C842 Highlights (rare)
Core Black: #0D0D0D Text, dark bg
Plasma White: #F0EDE8 Light bg
Ion: #D4C5A0 Cards, subtle bg
Ash: #6B6560 Muted text
FONTS
Display/UI: Space Grotesk (SemiBold, Medium)
Body: IBM Plex Sans (Regular, Medium)
Code: IBM Plex Mono (Regular, Medium)
RULES
No gradients. No purple. No Inter.
Ember is the signature color.
Pixie dust = sparse particle dots, never confetti.
Direct voice. Specific claims. Honest scope.
TAGLINE
The browser engine for agents.
Created March 16, 2026. Plasmate Labs. Apache 2.0.