We use the Machado, Oliveira and Fernandes model, a widely cited physiological simulation, with an adjustable severity slider for milder anomalous trichromacy. Any two palette colors that become too similar under a simulation are flagged, so you know where to add labels, patterns or more lightness contrast. Uploaded images are processed on your device.
Private by design
PaletteKit has no server-side processing. Colors, palettes and images stay in your browser; saved palettes live in local storage on this device only.
Popular palettes
Frequently asked questions
What is the most common type of color blindness?
Red-green deficiencies are by far the most common, especially deuteranomaly (reduced green sensitivity), which affects about 5% of men of European descent.
Is PaletteKit free?
Yes. Every tool is free with no account, no watermark and no sign-up. Copy codes and download exports as often as you like.
Are my images and colours uploaded anywhere?
No. Everything runs in your browser. Photos you extract colours from and palettes you save never leave your device.
Can I use the colours commercially?
Yes. Colours and colour codes cannot be owned by us, and anything you create is yours to use in client work, apps, print and branding.