Observed arrival · 2026-10-20
Sparkle’s five-round colour-vision test
Sparkle is an accessibility tool for previewing charts, images, palettes, and camera views under different types of colour blindness, with options to adjust what people see.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Designers and people checking colour-dependent visuals
- Worth noticing
- The page offers three preview modes: Green-weak, Red-weak, and Blue-weak.
Field notes
Visitors can choose Green-weak, Red-weak, or Blue-weak views, drag across an example chart, or upload a chart, map, slide, or photo for a preview and corrected download. The page also presents a camera mode for viewing nearby objects and a bookmark-bar web lens that recolours the current page; team reports and an API are listed as coming soon.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
⊠LoginAccess appeared gated
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
One card from the complete issue