Brand systems

Brand guidelines

Keep your brand's colours, voice, and rules together in one small guide.

Use this template

Try it with your details

File types: PDF
Size: A4 PDF
Use case: Brand systems
Licence: Free to copy and use in your own templates
Source: Made by thirds.ai with the open-licence Fraunces font, original graphic marks, and fictional sample names.

brand-guidelines/template.html

About this design

What you can make with it.

Teams share this so everyone making brand materials works from the same rules. It states the brand's promise, its audience and voice, shows the main colours and type pairing, and lists a few dos and don'ts. Update the colours, voice, and rules for every new edition of the guide.

Your details

What you can change.

These are the words and numbers you swap for your own. The design stays the same.

Brand nameA short text.
EditionA short text.
PromiseA short text.
AudienceA longer text with more than one line.
VoiceA short text.
Primary colourA colour.
Secondary colourA colour.
Type pairA short text.
ContactA short text.

{
  "brand_name": "Harbour & Pine",
  "edition": "Brand guide · Autumn 2026",
  "promise": "Make everyday customer work feel calm, clear, and well made.",
  "audience": "Small teams that need dependable content for clients, launches, and daily service.",
  "voice": "Warm, direct, practical, and confident. Use plain verbs and name the next step.",
  "primary_colour": "#0E5C4F",
  "secondary_colour": "#E2793D",
  "type_pair": "Fraunces for headings · Inter for body copy",
  "do_list": [
    "Lead with the useful result",
    "Keep one idea in each section",
    "Show the next action clearly",
    "Use real photos of real work",
    "Keep spacing consistent across pages"
  ],
  "avoid_list": [
    "Use vague claims or hype",
    "Hide key details in tiny type",
    "Mix colours without a clear role",
    "Crowd a page with too many ideas",
    "Use stock icons that do not fit the brand"
  ],
  "contact": "brand@harbourpine.example · harbourpine.example"
}

For developers

Make this file from your code or your AI tools.

Save your copy once, then send the new details with each request. Each finished file costs 1 credit.

curl https://thirds.ai/v1/pdf \
  -H "Authorization: Bearer $THIRDS_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: brand-guidelines-1" \
  -d '{"template_id":"tpl_your_copy","version":1,"data":{"brand_name":"Harbour & Pine","edition":"Brand guide · Autumn 2026","promise":"Make everyday customer work feel calm, clear, and well made.","audience":"Small teams that need dependable content for clients, launches, and daily service.","voice":"Warm, direct, practical, and confident. Use plain verbs and name the next step.","primary_colour":"#0E5C4F","secondary_colour":"#E2793D","type_pair":"Fraunces for headings · Inter for body copy","do_list":["Lead with the useful result","Keep one idea in each section","Show the next action clearly","Use real photos of real work","Keep spacing consistent across pages"],"avoid_list":["Use vague claims or hype","Hide key details in tiny type","Mix colours without a clear role","Crowd a page with too many ideas","Use stock icons that do not fit the brand"],"contact":"brand@harbourpine.example · harbourpine.example"}}'

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "render",
    "arguments": {
      "output": "pdf",
      "idempotency_key": "brand-guidelines-1",
      "request": {
        "template_id": "tpl_your_copy",
        "version": 1,
        "data": {
          "brand_name": "Harbour & Pine",
          "edition": "Brand guide · Autumn 2026",
          "promise": "Make everyday customer work feel calm, clear, and well made.",
          "audience": "Small teams that need dependable content for clients, launches, and daily service.",
          "voice": "Warm, direct, practical, and confident. Use plain verbs and name the next step.",
          "primary_colour": "#0E5C4F",
          "secondary_colour": "#E2793D",
          "type_pair": "Fraunces for headings · Inter for body copy",
          "do_list": [
            "Lead with the useful result",
            "Keep one idea in each section",
            "Show the next action clearly",
            "Use real photos of real work",
            "Keep spacing consistent across pages"
          ],
          "avoid_list": [
            "Use vague claims or hype",
            "Hide key details in tiny type",
            "Mix colours without a clear role",
            "Crowd a page with too many ideas",
            "Use stock icons that do not fit the brand"
          ],
          "contact": "brand@harbourpine.example · harbourpine.example"
        }
      }
    }
  }
}