fabric
Version:
Object model for HTML5 canvas, and SVG-to-canvas parser. Backed by jsdom and node-canvas.
2 lines • 710 B
JavaScript
const e=(e,t,n)=>(n<0&&(n+=1),n>1&&--n,n<1/6?e+6*(t-e)*n:n<.5?t:n<2/3?e+(t-e)*(2/3-n)*6:e),t=(e,t,n,r)=>{e/=255,t/=255,n/=255;let i=Math.max(e,t,n),a=Math.min(e,t,n),o,s,c=(i+a)/2;if(i===a)o=s=0;else{let r=i-a;switch(s=c>.5?r/(2-i-a):r/(i+a),i){case e:o=(t-n)/r+(t<n?6:0);break;case t:o=(n-e)/r+2;break;case n:o=(e-t)/r+4}o/=6}return[Math.round(360*o),Math.round(100*s),Math.round(100*c),r]},n=(e=`1`)=>parseFloat(e)/(e.endsWith(`%`)?100:1),r=e=>Math.min(Math.round(e),255).toString(16).toUpperCase().padStart(2,`0`),i=([e,t,n,r=1])=>{let i=Math.round(.3*e+.59*t+.11*n);return[i,i,i,r]};export{n as fromAlphaToFloat,i as greyAverage,r as hexify,e as hue2rgb,t as rgb2Hsl};
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