Support
Capture
How do I capture a colour with the camera?
Tap Capture from the palette library to open the viewfinder. Point the camera at what you want to sample — the loupe magnifies the sample point and the readout pill shows the live hex and RGB value beneath it. Tap the large eyedropper button to collect the colour.
My captured colour looks wrong. How do I make it accurate?
Auto-exposure and auto white balance are the most common reason a sampled colour is off. Tap Lock to freeze exposure and white balance before you sample, or open the manual controls (the top-right reveal) to adjust exposure bias and white-balance temperature by hand. For full control over lighting, use the photo eyedropper instead of the live camera.
Can I sample a colour from a photo?
Yes. Tap the photo-library button in the capture control row to import an image, then drag the zoomed loupe to place the crosshair on the exact pixel you want. The photo path preserves the image's embedded colour space (including Display P3), so wide-gamut colours are sampled faithfully.
Can I enter a colour by hand?
Yes. Manual entry accepts hex, RGB, HSL, and HSB. It's the precise path when you already know the value you want — no camera required.
How do I pull several colours from one scene?
Switch to multi-sample mode with the grid toggle. In multi mode the photo button becomes extract-from-image, which proposes a set of colours you can keep, drop, or fine-tune before saving. Collected colours gather in the capture tray, where you review them and save the set to a new or existing palette.
Palettes
How do I create a palette?
Tap the + button on the palette library, or save a set of captured colours to a new palette from the capture tray. Give it a name and it appears in your library.
How do I rename, reorder, or tag a palette?
Open a palette and use Edit to rename it, drag swatches to reorder them, and add tags. Individual swatches can be renamed and given per-swatch notes from the swatch detail view.
How many palettes can I have?
Free users can keep up to 3 palettes. Capture is never limited — only the number of saved palettes. Gamut Pro lifts the cap entirely. Creating and organising a palette works fully on the free tier; the limit is on count only.
Contrast & Accessibility
How does the contrast checker work?
Pick a foreground and a background colour — from a palette or by entering a value — and Gamut shows the WCAG contrast ratio between them, with pass/fail verdicts for AA and AAA across normal text, large text, and UI components. The contrast checker is free, forever, and never gated.
Why does Gamut's ratio differ slightly from another tool's?
Gamut's colour engine linearises sRGB using the modern IEC 61966-2-1 transfer function. Some tools follow the older WCAG 2.x draft threshold, which differs by a hair near the boundary. The two agree to within a fraction of a percent; the pass/fail thresholds (4.5, 7.0, 3.0) are exact, so verdicts match.
What is colour-vision simulation?
A Pro feature. Gamut simulates the common colour-vision-deficiency types across a single swatch or a whole palette, using a published simulation model, so you can see how your colours read to people who perceive colour differently. The palette accessibility audit runs contrast checks across every pairing in a palette and flags the ones that need a darker or lighter partner.
Export
What formats can I export?
Per swatch, you can copy hex and RGB for free; the code formats — SwiftUI Color, UIColor, and CSS — are Pro. Per palette, the export ladder covers:
- Hex list (free)
- CSS custom properties
- SwiftUI
Colorextension - Tailwind config
- JSON
- A swatch-sheet PNG and an Xcode asset catalog
The full ladder beyond the hex list is a Gamut Pro feature. (Adobe .ase and GIMP .gpl swatch files are planned for a later update.)
What does the sRGB / Display P3 toggle in export do?
It controls the colour space the exported values are written in. Under sRGB, any colour that falls outside the sRGB gamut is clamped, and Gamut shows a note telling you exactly how many colours were affected — so a wide-gamut colour is never silently narrowed without your knowledge. Choose Display P3 to keep the full gamut where your target supports it.
How do I get a value out for a single colour?
Tap the copy affordance on any swatch row to copy its hex, or open the swatch detail for hex, RGB, HSL, and HSB — each with its own copy button. A quiet toast confirms the copy.
Widget
How do I add the palette widget?
The palette widget is a Pro feature. Long-press your iPhone home screen until the icons wiggle, tap the + at the top left, search for Gamut, and add the widget. Tap it to configure which palette it shows. The widget renders in Display P3 where your device supports it.
Sync & Data
How does iCloud sync work?
Sync is a Pro feature. It uses your private iCloud account (CloudKit) to keep your palettes and swatches in sync across your own devices. There is no Gamut server — the developer cannot see your data. Free users run Gamut as an independent local app on each device.
Does Gamut work offline?
Yes. Everything saves locally the moment you capture it. On Pro, CloudKit queues changes and syncs when you're back online. Your palettes are always available whether or not you have a connection.
Can I back up or move my library?
Yes. Gamut can export a library archive and restore it. Restoring is treated as retention, not creation — so a free user can restore an archive of more than three palettes and keep them all. Data portability is never gated.
Subscription & Pro
What does Gamut Pro include?
Pro unlocks:
- Unlimited palettes
- The full export ladder (SwiftUI, CSS, Tailwind, JSON, asset catalog, PNG)
- iCloud sync across your devices
- Colour-vision simulation and the palette accessibility audit
- The home-screen palette widget
How much does Pro cost?
$3.99/month or $29.99/year, each with a 7-day free trial for new subscribers, or a one-time lifetime unlock at $49.99. The lifetime tier exists because a tool you own shouldn't nag you with recurring billing. Prices are shown in your local currency at purchase time.
What happens when I hit the 3-palette free limit?
Nothing is deleted. When you try to create a fourth palette, Gamut prompts you to upgrade. Your existing palettes remain fully accessible. You can delete a palette to make room, or upgrade to Pro to keep adding.
What happens to my palettes if my Pro subscription lapses?
Nothing is deleted. If you had ten palettes under Pro, you keep all ten — fully visible and usable. You simply can't create a new one until you're back under three palettes or re-subscribed. Sync stops and the app reverts to a local library, but your data is untouched. Re-subscribing restores everything instantly.
How do I restore a previous purchase?
Open Settings → Gamut Pro (or the paywall) and tap Restore Purchases. Make sure you're signed in to the same Apple ID that made the original purchase. This is essential for a lifetime buyer setting up a new device.
How do I cancel my subscription?
Subscriptions are managed through Apple. On your iPhone, go to Settings → [your name] → Subscriptions, find Gamut, and tap Cancel. Your Pro features stay active until the end of the current billing period. The lifetime purchase is permanent and cannot be cancelled.
Is the lifetime unlock shareable with my family?
Yes. The lifetime unlock is enabled for Family Sharing. Subscriptions follow Apple's standard Family Sharing behaviour.
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