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Emails

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<p>Bold style features strong, solid shapes for instant recognition. It gives excellent legibility on dark backgrounds.</p>

Ultimate Bold

**Summary**: Solid opaque fills with transparent cutouts and rounded outer silhouettes, monochrome — the highest-weight Ultimate sub-style. Notably harder and more serious than its line-weight siblings despite sharing the same rounded geometry. The tone signals confidence and directness: solid visual weight that reads as active, selected, or primary without requiring colour. Best for active states, mobile tab bars, badges, dark-mode-first products, and any context requiring maximum legibility at 12–16px; best used as the emphasis layer alongside Regular rather than as the sole icon weight.

**Last updated**: 2026-04-23

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## Fit & Recommendation

### Primary use cases

- Feature callouts and hero icon moments
- Navigation tab bars on mobile
- Badge and status indicators
- Dark-mode-first products
- Any context requiring maximum legibility at very small sizes (12–16px)
- Promotional materials and app store graphics

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## Brand & Cultural Identity

### What it communicates

> "We are confident and direct."

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## Visual & Technical Specs

### Visual properties

| Property | Value |
|----------|-------|
| Stroke weight | None (solid shapes) |
| Fill | Opaque fill with transparent cutouts |
| Corner treatment | Rounded outer silhouettes |
| Color | Monochrome |

### Emotional Scores

Ultimate Bold is near neutral on warmth leaning slightly cold — solid black fills are high-contrast and authoritative; not cold, but not warm. It is among the hardest sub-styles in the catalog — solid shapes represent the highest visual weight in the family and are unmistakably hard. It is somewhat formal — heavy fills read as authoritative and direct, with rounded silhouettes preventing full formality. It is one of the more serious sub-styles in the catalog — strong graphic weight signals seriousness with no decorative elements. On its human↔mechanical character, it is somewhat mechanical — rounded outer shapes retain some human quality while the density of fill reads as systematic.

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## Pairing & Compatibility

### Typography pairing

- **Primary**: Archivo Black / Space Grotesk Bold — matches the visual weight of solid icons
- **Display**: Syne, Clash Display — adds graphic boldness in marketing contexts
- **Body**: Inter Regular — provides contrast between the heavy icon and light body text
- **Avoid**: Ultra-thin or hairline fonts — the visual weight imbalance is extreme and reads as unresolved


<p>The world's largest icon family with encyclopedic coverage. Designed over twelve years, Ultimate offers every concept from common to rare icons. It's a neutral style and fits most use cases.&nbsp;</p>

The encyclopedia of icons

Server Sync

Servers

Server Sync icon - Ultimate Bold Set

Download Server Sync SVG vector or transparent PNG icon in Solid, Filled, Bold, Glyph style(s) for Sketch and Figma. It belongs to Ultimate Bold vectors SVG collection.