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Javascript color scale from 0% to 100%, rendering it from red to yellow to green
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| function perc2color(perc) { | |
| var r, g, b = 0; | |
| if(perc < 50) { | |
| r = 255; | |
| g = Math.round(5.1 * perc); | |
| } | |
| else { | |
| g = 255; | |
| r = Math.round(510 - 5.10 * perc); | |
| } | |
| var h = r * 0x10000 + g * 0x100 + b * 0x1; | |
| return '#' + ('000000' + h.toString(16)).slice(-6); | |
| } |
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