{"product_id":"palette-colour-system-contrast-lab","title":"Palette — Colour System \u0026 Contrast Lab","description":"\u003cp\u003e\u003cstrong\u003ePalette — Colour System \u0026amp; Contrast Lab\u003c\/strong\u003e — a premium, 100% offline digital tool by Aceplore. Runs entirely in your browser: no accounts, no subscriptions, your data never leaves your device.\u003c\/p\u003e\n\u003cp\u003eA private, offline colour workspace that builds palettes and \u003cem\u003eproves\u003c\/em\u003e they're readable — real WCAG contrast, colour-blind simulation, shade ramps and one-click CSS, Tailwind and design-token exports.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e30 built-in tools in one app.\u003c\/strong\u003e A dashboard with live contrast warnings; a generator that builds a full palette from one base colour; 50–950 tint and shade ramps; a WCAG contrast checker with AA and AAA verdicts; a full foreground-by-background contrast matrix; protanopia, deuteranopia and tritanopia simulation plus a non-colour-cue checklist; harmony sets, gradients, a HEX\/RGB\/HSL\/HSB converter and mixer; light and dark themes with auto dark-mode derivation that flags breaks; hover, active and disabled state derivations; a live UI preview; exports to CSS custom properties, SCSS, Tailwind and W3C design tokens; a saved colour library, locked brand colours, paste-to-import, auto naming, palette comparison and a scored accessibility audit with ranked fixes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe maths is real.\u003c\/strong\u003e Contrast uses WCAG relative luminance on linearised sRGB — black on white returns exactly 21:1. Colour conversions round-trip losslessly across 20,000 test colours.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's included:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePalette.html\u003c\/li\u003e\n\u003cli\u003eQuick-Start-Guide.html\u003c\/li\u003e\n\u003cli\u003eHow-To-Use-Guide.html\u003c\/li\u003e\n\u003cli\u003eREADME.txt\u003c\/li\u003e\n\u003cli\u003eLICENSE.txt\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIncludes a personalized welcome wizard, an interactive guided tour, a ⌘K command palette, light\/dark themes with 8 accents, and one-click JSON backup \u0026amp; restore. Works on any modern browser.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eA design tool. Contrast and accessibility figures follow published WCAG formulas as guidance — they are a starting point, not a certification. Always test with real users and assistive technology.\u003c\/em\u003e\u003c\/p\u003e","brand":"Aceplore","offers":[{"title":"Personal","offer_id":51672036638860,"sku":"PALETTEPERS","price":39.0,"currency_code":"CAD","in_stock":true},{"title":"Commercial","offer_id":51672036671628,"sku":"PALETTECOMM","price":79.0,"currency_code":"CAD","in_stock":true},{"title":"Extended","offer_id":51672036704396,"sku":"PALETTEEXTE","price":149.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0779\/3763\/9564\/files\/Palette-00-cover.png?v=1785216943","url":"https:\/\/aceplore.com\/products\/palette-colour-system-contrast-lab","provider":"Aceplore","version":"1.0","type":"link"}