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Adjust text and background colours while checking their contrast.

Compare text contrast with its size, weight and colour direction in view.

Sample a foreground and background pair and copy its contrast report.

Check text and interface contrast with transparency and lightness controls.

Share a colour pair with its WCAG text-contrast result.

Adjust CSS colour pairs and inspect their changing contrast ratio.

Find replacement colours that meet a chosen contrast target.

Check colour pairs, sample an image and collect results for a PDF.

AI SEO writing tool that studies the Google top 10 and writes or optimizes content

AI detection and plagiarism checking tools for text and documents.

Adjust CSS colours and calculate contrast with focused JavaScript functions.

Build interface colour scales with shade curves and contrast targets.

Choose numbered shades whose separation indicates minimum contrast.

See how a colour pair performs for different text sizes.

Prepare website icons with platform previews, markup and a deployment checker.

AI resume builder with templates, suggestions, and an ATS checker

AI writing, homework and research tools with a free daily credit plan.

AI study tools for grading, quizzes, paraphrasing and plagiarism checks

A free patient symptom checker from Isabel Healthcare, based on a tool used by doctors.

Free AI text detector for human and AI-written content.

Shape a complete interface palette while checking colour-pair contrast.

Generate interface themes from target contrast ratios and colour scales.

UK building-society accounts with card tools and a pre-payment scam check

View text contrast through different vision and lighting simulations.