What color formats can I paste?

Anything CSS accepts for a color value — hex, rgb(), hsl(), and named colors among them. The preview renders it as the browser would.

Does the preview replace a contrast check?

No — it shows how the pair reads; the contrast checker supplies the WCAG verdict. Use both: visual judgment and legal number answer different questions.

Can I preview multiple sizes of text?

The preview renders a readable range of sizes and weights so the pair can be judged as body text and as a heading in one look.

Why does my color look different here than in my app?

Surroundings shift perception — simultaneous contrast in action. The rendered pair is identical; the context around it is what differs.

Why paste the value in rather than pick it?

Because the question is whether this particular string works, character for character — a picker would normalise it into something else, and the difference between what a picker writes and what a file contains is exactly what gets tested here.

CSS Text Color Preview

CSS color value

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The CSS text color preview renders real text in any color over any background — the fastest way to judge a font color before it ships.

What is CSS Text Color Preview?

Color values lie quietly. A foreground that looks perfect on the swatch card can dissolve on the actual background it ships over — and the failure is only visible when real text renders on the real surface. The CSS text color preview closes that gap: set a CSS color value, set a background, and the tool renders live text in the exact pair — the test font color css verdict that swatches cannot give.

The input being a raw CSS value is the tool's edge.
Paste the color exactly as the stylesheet expresses it — a hex, an rgb() call, a var() token's resolved value, even a gradient-adjacent edge case the picker fields would reject — and the preview honors it as the browser would.
That makes the tool the verifier of the last mile: the token file says one thing, this shows what it means, on the background it will actually meet.
Typography renders at readable sizes with enough weight to judge, so the preview answers the question as a reader will experience it, not as a color-math abstraction.

The workflow it anchors is the before-commit check: every text/background pair that matters gets one glance here before it ships — body copy on its surface, links on cards, the footer on the footer color. The contrast checker sits one step deeper for the legal verdict: the preview shows what the pair looks like, the checker says whether it passes, and together they catch both the aesthetic and the compliance failure. The color on background preview generalizes the same idea beyond text to UI elements.

Reading text against a background is a different judgement from measuring it, and the two disagree often enough to be worth doing separately. Type size, weight, tracking and the length of the run all shift where the threshold of comfort sits: the same pair that is comfortable at twenty-four pixels over two words strains at fourteen over a paragraph, and a heading in a light weight needs more separation than a bold one at the same value. Rendering the pair true, with no scrim and no badge to anchor the judgement, is what surfaces those effects — which is why the order worth using is to preview text color on background first and measure afterwards. If the sample reads badly, no ratio will rescue it; if it reads well, the number is there to confirm the margin is real rather than marginal.

Testing the worst case as well — the smallest size, the lightest weight, the longest line — is what keeps the preview from flattering a pair that only works in the sample.

As a text color contrast preview instrument it is deliberately unquantified — no ratios, no badges, just the pair rendered true. That is the point: the css text color preview answers how it reads, the moment before the stylesheet commits it, with nothing between your eye and the rendered truth.

Keep the pair that passed with the palette, so a later redesign starts from a combination already read at the right size rather than from a fresh guess.

How to use CSS Text Color Preview

Paste or type the CSS color value your stylesheet will use.
Set the background it will render over.
Judge the live text rendering — then confirm compliance with the contrast checker if the pair carries text.

When to use CSS Text Color Preview vs related tools

Use this as the last-mile visual check for any text/background pair. Use the contrast checker for the WCAG verdict, the color on background preview for elements beyond text, and the format validator when the value itself needs screening before previewing. When the answer has to be a number rather than an impression, the contrast ratio calculator produces it, and a longer passage that has to stay readable at real sizes is the text readability checker's subject.

Privacy & Security

This tool runs entirely in your browser — no data ever leaves your device. There is no server round-trip, no upload, no logging, and no account required. Your input is processed locally using client-side JavaScript and is never stored, transmitted, or accessible to anyone else. When you close the tab, everything disappears.