Colour Contrast Checker: common mistakes, troubleshooting and better results

Fluxo de trabalho fiável

Solve common Colour Contrast Checker problems with practical troubleshooting, better inputs, output checks and a repeatable workflow.

1. Identify exactly what Colour Contrast Checker is calculating or converting and use matching units.
2. Enter the source values without rounding them prematurely.
3. Run the calculation and keep enough precision to review the result.
4. Sense-check the result against a simple example, known reference or second method before acting on it.

Verificações antes de usar o resultado

• Are the source values current and entered in the correct fields?
• Are the units, decimal separators and signs correct?
• Have optional settings or assumptions been reviewed?
• Does the result look plausible when compared with a simple known case?
• Have you kept enough precision until the final step?
• If the result affects money, safety, purchasing or compliance, has it been independently checked?

Erros comuns a evitar

• Mixing units or entering a value into the wrong field.
• Rounding inputs too early and compounding the error.
• Treating an estimate as a guarantee rather than a decision aid.
• Skipping a quick second-method or real-world sense-check.

Guia prático: troubleshooting

Reproduce the issue with the smallest possible input.

Confirm the source format before changing multiple settings at once.

Compare the failing output with a known-good example to isolate the difference.

Perguntas frequentes