c2n/web-componentsv0.0.16
ComponentsIconsGuidesExamplesGetting started
ComponentsIconsGuidesExamplesGetting started
GitHub repository

QR Code

Generate accessible, themeable QR codes locally as crisp SVG graphics.

Attributes

NameTypeDefaultDescription
valuestring—Text or URL encoded by the QR code.
sizenumber200Rendered width and height in CSS pixels. Set to 0 to use --c2-qr-code--size.
error-correctionQrCodeErrorCorrectionMError correction level: L (7%), M (15%), Q (25%), or H (30%).
marginnumber4Quiet-zone width measured in QR modules. Four is recommended for reliable scanning.
boost-error-correctionbooleanfalseRaises error correction when the encoded version has spare capacity.
aria-labelstring | nullnullAccessible name announced for the generated image. Defaults to QR code.

Slots

NameDescription
centerOptional logo or mark centered over the code. Prefer error-correction="H" and keep the mark small so the code remains scannable.

Events

NameTypeDescription
qr-code-errorCustomEvent<QrCodeErrorEventDetail>Fired when the value cannot be encoded. detail contains the error and rejected value.

CSS custom properties

Grouped by semantic target and state from --c2-component__target__state--property. Click a group to collapse it; click a name to copy it.

NameTypeDefaultDescription
c2-qr-code
--c2-qr-code--sizepixel200px
c2-qr-code > module
--c2-qr-code__module--colorcolor#18181b
c2-qr-code > background
--c2-qr-code__background--colorcolor#ffffff
c2-qr-code > container
--c2-qr-code__container--border-radiusborder-radius8px
c2-qr-code > placeholder
--c2-qr-code__placeholder--colorcolor#71717a
--c2-qr-code__placeholder--font-sizefont-size12px
c2-qr-code > center
--c2-qr-code__center--sizelength20%
--c2-qr-code__center--background-colorcolor#ffffff
--c2-qr-code__center--paddingpadding4px
--c2-qr-code__center--border-radiusborder-radius6px
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