Created
August 22, 2020 06:04
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Quick color checker. Validate and display a HEX color.
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| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="UTF-8"> | |
| <meta name="viewport" content="width=device-width, initial-scale=1.0"> | |
| <title>Color checker</title> | |
| <style> | |
| .container { | |
| display: flex; | |
| justify-content: center; | |
| align-items: center; | |
| height: 100vh; | |
| } | |
| #color { | |
| height: 1.5rem; | |
| width: 15rem; | |
| border-radius: 1rem; | |
| border: 3px solid rgb(226, 226, 226); | |
| padding: .2rem 1rem; | |
| font-size: .75rem; | |
| outline: none; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <div class="container"> | |
| <div> | |
| <input type="text" placeholder="#ffffff" id="color"> | |
| </div> | |
| </div> | |
| <script> | |
| const colorInputEl = document.getElementById('color') | |
| colorInputEl.addEventListener('input', event => { | |
| const color = event.target.value | |
| const hexColorRegex = /^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})$/ | |
| if( color.match(hexColorRegex) ) { | |
| colorInputEl.style.borderColor = color | |
| } else { | |
| colorInputEl.style.borderColor = 'rgb(226, 226, 226)' | |
| } | |
| }) | |
| </script> | |
| </body> | |
| </html> |
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