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@lukasoppermann
lukasoppermann committed Dec 10, 2024
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14 changes: 7 additions & 7 deletions ...butor-docs/adrs/adr-009-color-contrast.md → ...butor-docs/adrs/adr-010-color-contrast.md
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Expand Up @@ -19,15 +19,15 @@ This in turn is important for governmental requirements like [Section 508 of the

### Text contrast

| Contrast pair | Ratio | Description |
| ---------------------------------------- | --------------- | ------------------------------------------------------------------------------------------------------------------------------------------------- |
| Contrast pair | Ratio | Description |
| --------------------------------------- | --------------- | ------------------------------------------------------------------------------------------------------------------------------------------------- |
| Text vs. backgrounds<sup>_</sup>_(bg)\* | `4.5:1`[^1.4.3] | Any text color vs. any background color it can be used on |
| Link vs. Text | `3:1` | Links need to have a `4.5:1` ratio against the background AND a `3:1` ratio against surrounding text or be underlined[^link] |
| Placeholder text vs. bg | `4.5:1` | Placeholder text must have a `4.5:1` contrast to the background e.g. input background[^placeholder], or a visible text label[^1.4.3] must be used |
| Disabled text vs. bg | `none` | Disabled text (text in a disabled control) does not have any contrast requirements[^1.4.3] |
| Decorative text<sup>\*\*</sup> vs. bg | `none` | Decorative text does not have any contrast requirements[^1.4.3] |
| Link vs. Text | `3:1` | Links need to have a `4.5:1` ratio against the background AND a `3:1` ratio against surrounding text or be underlined[^link] |
| Placeholder text vs. bg | `4.5:1` | Placeholder text must have a `4.5:1` contrast to the background e.g. input background[^placeholder], or a visible text label[^1.4.3] must be used |
| Disabled text vs. bg | `none` | Disabled text (text in a disabled control) does not have any contrast requirements[^1.4.3] |
| Decorative text<sup>\*\*</sup> vs. bg | `none` | Decorative text does not have any contrast requirements[^1.4.3] |

<sup>*</sup> _Backgrounds is any color an element like text is placed on, like the page background, the background color of a `card` component or the fill of an `input` field._
<sup>*</sup> *Backgrounds is any color an element like text is placed on, like the page background, the background color of a `card` component or the fill of an `input` field.*
<sup>\*\*</sup>*Decorative text is defined as serving only an aesthetic purpose, providing no information, and having no functionality.[^pure-decoration]\*

### State contrast
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