Color-Blind-Test/index.html at main · heretool/Color-Blind-Test · GitHub

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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 Blind Test</title>
<meta name="description" content="Color Blind Test">
<meta name="author" content="Heretool">
<style>
@charset "utf-8";
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-display: swap;
}
html {
    scroll-behavior: smooth;
    scroll-padding-top: 70px
}
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: #f5f5f9;
    color: #333;
    line-height: 1.5;
    padding-top: 70px;
}
input, textarea, select {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif
}
select:focus, input:focus, textarea:focus {
    outline: none;
    border-color: #7367f0 !important;
    box-shadow: 0 0 0 2px rgba(115,103,240,0.1)
}
main, .content {
    padding: 0 20px;
    max-width: 1100px;
    margin: 0 auto
}
main {
    margin-bottom: 60px
}
.hero {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    max-width: 1000px;
    margin: 0 auto;
    gap: 20px;
    padding: 30px 20px 40px 20px
}
.hero h1 {
    font-family: -apple-system, BlinkMacSystemFont, Calibri, Roboto, "Segoe UI", Helvetica, Arial, sans-serif;
    font-size: 34px;
    font-weight: 700;
    color: #333;
    line-height: 1.25;
    max-width: 860px
}
.hero p {
    font-size: 16px;
    line-height: 1.5;
    max-width: 750px
}
.tool-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 2rem;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.05);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif
}
.remind {
    position: fixed;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    padding: 12px 24px;
    border-radius: 8px;
    color: #fff;
    z-index: 9999;
    display: none;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    transition: all 0.3s
}
.remind.error {
    background: rgba(220,38,38,0.9)
}
.remind.success {
    background: rgba(22,163,74,0.9)
}
.test-wrapper {
    display: grid;
    grid-template-columns: 1fr 350px;
    gap: 2rem
}

@media(max-width:900px) {
.test-wrapper {
    grid-template-columns: 1fr
}
}
.test-card {
    background: #f8fafc;
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    border: 1px solid #e2e8f0
}
.plate-box {
    width: 300px;
    height: 300px;
    margin: 0 auto 1.5rem;
    background: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 25px rgba(0,0,0,0.06);
    overflow: hidden;
    position: relative
}
#plate-img {
    width: 400px;
    height: 400px;
    object-fit: none;
    object-position: center;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}
.input-group {
    display: flex;
    gap: 10px;
    justify-content: center;
    margin-top: 1rem
}
.test-input {
    padding: 12px;
    border: 2px solid #cbd5e0;
    border-radius: 8px;
    width: 120px;
    font-size: 18px;
    text-align: center;
    outline: none;
    transition: 0.2s
}
.test-input:focus {
    border-color: #7367f0
}
.btn-submit {
    padding: 12px 25px;
    background: #7367f0;
    color: #fff;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer
}
.btn-reset {
    background: #f1f5f9;
    color: #475569;
    margin-top: 15px;
    border: none;
    padding: 8px 15px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 13px
}
.simulator-card {
    background: #fff;
    border: 1px solid #e2e8f0;
    padding: 1.5rem;
    border-radius: 12px
}
.upload-zone {
    border: 2px dashed #cbd5e0;
    margin-top: 10px;
    padding: 1.5rem;
    text-align: center;
    border-radius: 10px;
    cursor: pointer;
    margin-bottom: 1rem
}
.sim-preview {
    width: 100%;
    min-height: 150px;
    background: #f1f5f9;
    border-radius: 8px;
    margin-top: 15px;
    overflow: hidden
}
.sim-preview canvas {
    width: 100%;
    height: auto;
    display: block
}
.type-select {
    width: 100%;
    padding: 10px;
    margin-top: 10px;
    border-radius: 6px;
    border: 1px solid #cbd5e0;
    font-size: 14px
}
#result-display {
    display: none;
    padding: 1.5rem;
    background: #fff;
    border-radius: 10px;
    margin-top: 1rem;
    border-left: 5px solid #7367f0;
    text-align: left
}
.disclaimer {
    font-size: 13px;
    color: #94a3b8;
    margin-top: 15px;
    line-height: 1.4
}
</style>
</head>
<body>
<main>
  <section class="hero" id="tool">
    <h1>Color Blind Test</h1>
    <p>Take a quick and reliable online color blind test using professional Ishihara plates to check for red-green or total color vision deficiency.</p>
  </section>
  <section class="tool-container">
    <div class="test-wrapper">
      <div class="test-main">
        <div class="test-card" id="test-screen">
          <div class="progress" style="margin-bottom:10px;font-size:14px;color:#64748b">Plate <span id="current-step">1</span> of 10</div>
          <div class="plate-box"> <img id="plate-img" src="ishihara/1.webp" alt="Ishihara Plate"> </div>
          <p style="font-size:15px;color:#1e293b;margin-bottom:15px">What number do you see in the circle?</p>
          <div class="input-group">
            <input type="text" id="answer-input" class="test-input" autocomplete="off">
            <button class="btn-submit" onclick="nextPlate()">Next</button>
          </div>
          <button class="btn-reset" onclick="resetTest()">Restart Test</button>
          <div id="result-display"></div>
        </div>
      </div>
      <div class="side-panel">
        <div class="simulator-card">
          <h3 style="margin-top:0;font-size:16px">Vision Simulator</h3>
          <p style="font-size:14px;color:#64748b">Upload an image to see how it appears to color blind users.</p>
          <div class="upload-zone" onclick="document.getElementById('img-up').click()">
            <svg width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
              <path d="M21 15v4a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2v-4"></path>
              <polyline points="17 8 12 3 7 8"></polyline>
              <line x1="12" y1="3" x2="12" y2="15"></line>
            </svg>
            <br>
            <small>Click to Upload</small>
            <input type="file" id="img-up" hidden accept="image/*">
          </div>
          <select class="type-select" id="vision-type" onchange="simulate()">
            <option value="normal">Normal Vision</option>
            <option value="deuteranopia">Deuteranopia (Red-Green)</option>
            <option value="protanopia">Protanopia (Red-Green)</option>
            <option value="achromatopsia">Achromatopsia (Total)</option>
          </select>
          <div class="sim-preview" id="sim-container"></div>
        </div>
        <p class="disclaimer"><b>Disclaimer:</b> This test is for screening purposes only. It is not a professional medical diagnosis. If you suspect vision issues, please consult an ophthalmologist. (Ishihara's Test plates from mk.bcgsc.ca)</p>
      </div>
    </div>
  </section>
</main>
<div id="remind" class="remind"></div>
<script>const r=document.getElementById('remind'),pi=document.getElementById('plate-img'),cs=document.getElementById('current-step'),ai=document.getElementById('answer-input'),rd=document.getElementById('result-display'),ts=document.getElementById('test-screen'),iu=document.getElementById('img-up'),sc=document.getElementById('sim-container'),vt=document.getElementById('vision-type');let step=1,correct=0;const plates=[{v:12},{v:8},{v:6},{v:29},{v:57},{v:5},{v:3},{v:15},{v:74},{v:2}];function msg(m,t){r.innerText=m;r.className='remind '+(t?'success':'error');r.style.display='block';setTimeout(()=>{r.style.display='none'},2500)}function nextPlate(){const val=ai.value.trim();if(!val&&step<10){msg('Please enter the number you see','error');return}if(parseInt(val)===plates[step-1].v)correct++;if(step<10){step++;cs.innerText=step;pi.src=`ishihara/${step}.webp`;ai.value=''}else{showResult()}}function showResult(){let res='',cls='success';if(correct>=9)res='<b>Normal Vision:</b> You correctly identified '+correct+'/10 plates. No significant deficiency detected.';else if(correct>=6)res='<b>Mild Deficiency:</b> You identified '+correct+'/10. There may be a slight red-green deficiency.';else{res='<b>Strong Deficiency:</b> You identified '+correct+'/10. This suggests a significant color vision deficiency.';cls='error'}rd.innerHTML=res+'<br><br><small>We recommend consulting an eye specialist for a comprehensive exam.</small>';rd.style.display='block';ts.querySelector('.plate-box').style.display='none';ts.querySelector('.input-group').style.display='none';ts.querySelector('p').style.display='none';msg('Test Completed!',true)}function resetTest(){step=1;correct=0;cs.innerText='1';pi.src='ishihara/1.webp';ai.value='';rd.style.display='none';ts.querySelector('.plate-box').style.display='flex';ts.querySelector('.input-group').style.display='flex';ts.querySelector('p').style.display='block'}let sourceImg=null;iu.onchange=e=>{const f=e.target.files[0];if(f){const reader=new FileReader();reader.onload=ev=>{sourceImg=new Image();sourceImg.onload=()=>simulate();sourceImg.src=ev.target.result};reader.readAsDataURL(f)}};function simulate(){if(!sourceImg)return;const cvs=document.createElement('canvas'),ctx=cvs.getContext('2d'),type=vt.value;const maxW=sc.clientWidth;const scale=maxW/sourceImg.width;cvs.width=maxW;cvs.height=sourceImg.height*scale;ctx.drawImage(sourceImg,0,0,cvs.width,cvs.height);const data=ctx.getImageData(0,0,cvs.width,cvs.height);const d=data.data;for(let i=0;i<d.length;i+=4){let r=d[i],g=d[i+1],b=d[i+2];if(type==='deuteranopia'){d[i]=r*0.625+g*0.375;d[i+1]=r*0.7+g*0.3;d[i+2]=g*0.3+b*0.7}else if(type==='protanopia'){d[i]=r*0.567+g*0.433;d[i+1]=r*0.558+g*0.442;d[i+2]=g*0.242+b*0.758}else if(type==='achromatopsia'){let v=r*0.299+g*0.587+b*0.114;d[i]=d[i+1]=d[i+2]=v}}ctx.putImageData(data,0,0);sc.innerHTML='';sc.appendChild(cvs)}</script>
</body>
</html>