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Design System: Kraken

Hermes Agent — Implementation Notes

The original site uses proprietary fonts. For self-contained HTML output, use these CDN substitutes: - Primary: Inter | Mono: system monospace stack - Font stack (CSS): font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif; - Mono stack (CSS): font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, 'Liberation Mono', 'Courier New', monospace; html <link href="https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap" rel="stylesheet"> Use write_file to create HTML, serve via generative-widgets skill (cloudflared tunnel). Verify visual accuracy with browser_vision after generating.

1. Visual Theme & Atmosphere

Kraken's website is a clean, trustworthy crypto exchange that uses purple as its commanding brand color. The design operates on white backgrounds with Kraken Purple (#7132f5, #5741d8, #5b1ecf) creating a distinctive, professional crypto identity. The proprietary Kraken-Brand font handles display headings with bold (700) weight and negative tracking, while Kraken-Product (with IBM Plex Sans fallback) serves as the UI workhorse.

Key Characteristics: - Kraken Purple (#7132f5) as primary brand with darker variants (#5741d8, #5b1ecf) - Kraken-Brand (display) + Kraken-Product (UI) dual font system - Near-black (#101114) text with cool blue-gray neutral scale - 12px radius buttons (rounded but not pill) - Subtle shadows (rgba(0,0,0,0.03) 0px 4px 24px) — whisper-level - Green accent (#149e61) for positive/success states

2. Color Palette & Roles

Primary

Kraken Purple (#7132f5): Primary CTA, brand accent, links
Purple Dark (#5741d8): Button borders, outlined variants
Purple Deep (#5b1ecf): Deepest purple
Purple Subtle (rgba(133,91,251,0.16)): Purple at 16% — subtle button backgrounds
Near Black (#101114): Primary text

Neutral

Cool Gray (#686b82): Primary neutral, borders at 24% opacity
Silver Blue (#9497a9): Secondary text, muted elements
White (#ffffff): Primary surface
Border Gray (#dedee5): Divider borders

Semantic

Green (#149e61): Success/positive at 16% opacity for badges
Green Dark (#026b3f): Badge text

3. Typography Rules

Font Families

Display: Kraken-Brand, fallbacks: IBM Plex Sans, Helvetica, Arial
UI / Body: Kraken-Product, fallbacks: Helvetica Neue, Helvetica, Arial

Hierarchy

Role	Font	Size	Weight	Line Height	Letter Spacing
Display Hero	Kraken-Brand	48px	700	1.17	-1px
Section Heading	Kraken-Brand	36px	700	1.22	-0.5px
Sub-heading	Kraken-Brand	28px	700	1.29	-0.5px
Feature Title	Kraken-Product	22px	600	1.20	normal
Body	Kraken-Product	16px	400	1.38	normal
Body Medium	Kraken-Product	16px	500	1.38	normal
Button	Kraken-Product	16px	500–600	1.38	normal
Caption	Kraken-Product	14px	400–700	1.43–1.71	normal
Small	Kraken-Product	12px	400–500	1.33	normal
Micro	Kraken-Product	7px	500	1.00	uppercase

4. Component Stylings

Buttons

Primary Purple - Background: #7132f5 - Text: #ffffff - Padding: 13px 16px - Radius: 12px

Purple Outlined - Background: #ffffff - Text: #5741d8 - Border: 1px solid #5741d8 - Radius: 12px

Purple Subtle - Background: rgba(133,91,251,0.16) - Text: #7132f5 - Padding: 8px - Radius: 12px

White Button - Background: #ffffff - Text: #101114 - Radius: 10px - Shadow: rgba(0,0,0,0.03) 0px 4px 24px

Secondary Gray - Background: rgba(148,151,169,0.08) - Text: #101114 - Radius: 12px

Badges

Success: rgba(20,158,97,0.16) bg, #026b3f text, 6px radius
Neutral: rgba(104,107,130,0.12) bg, #484b5e text, 8px radius

5. Layout Principles

Spacing: 1px, 2px, 3px, 4px, 5px, 6px, 8px, 10px, 12px, 13px, 15px, 16px, 20px, 24px, 25px

Border Radius: 3px, 6px, 8px, 10px, 12px, 16px, 9999px, 50%

6. Depth & Elevation

Subtle: rgba(0,0,0,0.03) 0px 4px 24px
Micro: rgba(16,24,40,0.04) 0px 1px 4px

7. Do's and Don'ts

Do

Use Kraken Purple (#7132f5) for CTAs and links
Apply 12px radius on all buttons
Use Kraken-Brand for headings, Kraken-Product for body

Don't

Don't use pill buttons — 12px is the max radius for buttons
Don't use other purples outside the defined scale

8. Responsive Behavior

Breakpoints: 375px, 425px, 640px, 768px, 1024px, 1280px, 1536px

9. Agent Prompt Guide

Quick Color Reference

Brand: Kraken Purple (#7132f5)
Dark variant: #5741d8
Text: Near Black (#101114)
Secondary text: #9497a9
Background: White (#ffffff)

Example Component Prompts

"Create hero: white background. Kraken-Brand 48px weight 700, letter-spacing -1px. Purple CTA (#7132f5, 12px radius, 13px 16px padding)."