AA normal passes
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Batch Color Contrast Checker
Many pairs, not one picker. The Color Contrast Ratio Checker takes two color inputs. This page reads a list of foreground|background hex lines.
Page updated 2026-09-14. Official source: WCAG 2.1 contrast
Calculator
Calculated Results
Pairs
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What the Batch Color Contrast Checker calculates
Score many fg|bg hex pairs for WCAG 2.1 AA/AAA. The single-pair contrast page is a different tool Enter one realistic scenario in the calculator above and read the result together with its labels and assumptions. The page is designed for a quick, repeatable estimate rather than a black-box answer.
This is a browser-side worksheet for design planning. It does not connect to the named provider, submit a transaction, or create an account on your behalf. Save the inputs if you need an audit trail, then rerun the page when an assumption changes.
Inputs, formula, and assumptions
Use the field labels as the source of truth: enter rates as percentages, amounts in the selected currency, and dates in the format shown. Invalid or incomplete inputs should remain visible so you can correct them before copying a result.
The calculator applies the formula implied by the labels and shows the key output in plain language. Displayed values are rounded for reading; keep the copied inputs and unrounded assumptions when a later calculation needs more precision.
If the result depends on a live rate or policy, compare the value with WCAG 2.1 contrast before relying on it.
How to use the result responsibly
For the next step, compare this result with Color Contrast Ratio Checker (WCAG 2.1 AA / AAA Compliance), Color Code Converter, HEX to RGB / RGBA Code Converter. A second calculator is useful when you need to test a different assumption, not to manufacture false precision.
Results are estimates, not a quote, diagnosis, tax filing, legal opinion, investment recommendation, or guarantee. Check the jurisdiction, provider plan, time period, and rounding rules that apply to your real situation.
Inputs stay in your browser for this page. Do not paste passwords, payment credentials, private keys, or other secrets into any public web tool, even when the page is designed to run locally.
Frequently Asked Questions (FAQ)
What does the Batch Color Contrast Checker calculate?
It estimates score many fg|bg hex pairs for WCAG 2.1 AA/AAA. The single-pair contrast page is a different tool from the values you enter. Review the labels and assumptions above the result so you can tell exactly what is included.
Are these live quotes or guaranteed results?
No. The page is an in-browser estimate based on your inputs. Provider pricing, taxes, policies, exchange rates, and other external conditions can change, so confirm the live value before committing money or publishing a decision.
Are my inputs uploaded?
The calculator is designed to run in your browser and does not need an account or a server upload. Avoid entering credentials, payment details, private keys, or other secrets in any public tool.
What should I verify before using the result?
Verify the current WCAG 2.1 contrast, your jurisdiction or plan, and any rounding or date rule that applies. The official source link is shown above the calculator.
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HEX to RGB / RGBA Code Converter Turn a hex color plus alpha into rgb() and rgba() CSS, focused on copy-ready declarations. -
ARIA Role Reference Builder Emit a small HTML example and required notes for a chosen ARIA role. Not a full WCAG audit.