| var t=function(t,a,n){return void 0===a&&(a=0),void 0===n&&(n=1),t>n?n:t>a?t:a},a=function(t){var a=t/255;return a<.04045?a/12.92:Math.pow((a+.055)/1.055,2.4)},n=function(t){return 255*(t>.0031308?1.055*Math.pow(t,1/2.4)-.055:12.92*t)},r=96.422,o=100,u=82.521,e=function(a){var r,o,u={x:.9555766*(r=a).x+-.0230393*r.y+.0631636*r.z,y:-.0282895*r.x+1.0099416*r.y+.0210077*r.z,z:.0122982*r.x+-.020483*r.y+1.3299098*r.z};return o={r:n(.032404542*u.x-.015371385*u.y-.004985314*u.z),g:n(-.00969266*u.x+.018760108*u.y+41556e-8*u.z),b:n(556434e-9*u.x-.002040259*u.y+.010572252*u.z),a:a.a},{r:t(o.r,0,255),g:t(o.g,0,255),b:t(o.b,0,255),a:t(o.a)}},i=function(n){var e=a(n.r),i=a(n.g),p=a(n.b);return function(a){return{x:t(a.x,0,r),y:t(a.y,0,o),z:t(a.z,0,u),a:t(a.a)}}(function(t){return{x:1.0478112*t.x+.0228866*t.y+-.050127*t.z,y:.0295424*t.x+.9904844*t.y+-.0170491*t.z,z:-.0092345*t.x+.0150436*t.y+.7521316*t.z,a:t.a}}({x:100*(.4124564*e+.3575761*i+.1804375*p),y:100*(.2126729*e+.7151522*i+.072175*p),z:100*(.0193339*e+.119192*i+.9503041*p),a:n.a}))},p=216/24389,h=24389/27,f=function(t){var a=i(t),n=a.x/r,e=a.y/o,f=a.z/u;return n=n>p?Math.cbrt(n):(h*n+16)/116,{l:116*(e=e>p?Math.cbrt(e):(h*e+16)/116)-16,a:500*(n-e),b:200*(e-(f=f>p?Math.cbrt(f):(h*f+16)/116)),alpha:a.a}},c=function(a,n,i){var c,y=f(a),x=f(n);return function(t){var a=(t.l+16)/116,n=t.a/500+a,i=a-t.b/200;return e({x:(Math.pow(n,3)>p?Math.pow(n,3):(116*n-16)/h)*r,y:(t.l>8?Math.pow((t.l+16)/116,3):t.l/h)*o,z:(Math.pow(i,3)>p?Math.pow(i,3):(116*i-16)/h)*u,a:t.alpha})}({l:t((c={l:y.l*(1-i)+x.l*i,a:y.a*(1-i)+x.a*i,b:y.b*(1-i)+x.b*i,alpha:y.alpha*(1-i)+x.alpha*i}).l,0,400),a:c.a,b:c.b,alpha:t(c.alpha)})};export default function(t){function a(t,a,n){void 0===n&&(n=5);for(var r=[],o=1/(n-1),u=0;u<=n-1;u++)r.push(t.mix(a,o*u));return r}t.prototype.mix=function(a,n){void 0===n&&(n=.5);var r=a instanceof t?a:new t(a),o=c(this.toRgb(),r.toRgb(),n);return new t(o)},t.prototype.tints=function(t){return a(this,"#fff",t)},t.prototype.shades=function(t){return a(this,"#000",t)},t.prototype.tones=function(t){return a(this,"#808080",t)}} |