(function(){var t,e=[].slice;t=function(){function t(){var e,n;for(e=[],n=1;n<=4;n++)e.push(new t.mutablecolor(60));this.col=e,this._scheme="mono",this._distance=.5,this._web_safe=!1,this._add_complement=!1}var n,r,o,a,i,u;for(i=Array.isArray||function(t){return"[object Array]"==={}.toString.call(t)},t.SCHEMES={},a="mono monochromatic contrast triade tetrade analogic".split(/\s+/),r=0,o=a.length;r<o;r++)u=a[r],t.SCHEMES[u]=!0;return t.PRESETS={default:[-1,-1,1,-.7,.25,1,.5,1],pastel:[.5,-.9,.5,.5,.1,.9,.75,.75],soft:[.3,-.8,.3,.5,.1,.9,.5,.75],light:[.25,1,.5,.75,.1,1,.5,1],hard:[1,-1,1,-.6,.1,1,.6,1],pale:[.1,-.85,.1,.5,.1,1,.1,.75]},t.COLOR_WHEEL={0:[255,0,0,100],15:[255,51,0,100],30:[255,102,0,100],45:[255,128,0,100],60:[255,153,0,100],75:[255,178,0,100],90:[255,204,0,100],105:[255,229,0,100],120:[255,255,0,100],135:[204,255,0,100],150:[153,255,0,100],165:[51,255,0,100],180:[0,204,0,80],195:[0,178,102,70],210:[0,153,153,60],225:[0,102,178,70],240:[0,51,204,80],255:[25,25,178,70],270:[51,0,153,60],285:[64,0,153,60],300:[102,0,153,60],315:[153,0,153,60],330:[204,0,153,80],345:[229,0,102,90]},t.prototype.colors=function(){var t,e,n,r,o,a,i,u,s;if(s=1,e=this.col[0].get_hue(),t={mono:function(t){return function(){}}(),contrast:function(t){return function(){return s=2,t.col[1].set_hue(e),t.col[1].rotate(180)}}(this),triade:function(t){return function(){var n;return s=3,n=60*t._distance,t.col[1].set_hue(e),t.col[1].rotate(180-n),t.col[2].set_hue(e),t.col[2].rotate(180+n)}}(this),tetrade:function(t){return function(){var n;return s=4,n=90*t._distance,t.col[1].set_hue(e),t.col[1].rotate(180),t.col[2].set_hue(e),t.col[2].rotate(180+n),t.col[3].set_hue(e),t.col[3].rotate(n)}}(this),analogic:function(t){return function(){var n;return s=t._add_complement?4:3,n=60*t._distance,t.col[1].set_hue(e),t.col[1].rotate(n),t.col[2].set_hue(e),t.col[2].rotate(360-n),t.col[3].set_hue(e),t.col[3].rotate(180)}}(this)},t.monochromatic=t.mono,null==t[this._scheme])throw"Unknown color scheme name: "+this._scheme;for(t[this._scheme](),i=[],n=o=0,u=s-1;0<=u?o<=u:o>=u;n=0<=u?++o:--o)for(r=a=0;a<=3;r=++a)i[4*n+r]=this.col[n].get_hex(this._web_safe,r);return i},t.prototype.colorset=function(){var t,e;for(t=n(this.colors()),e=[];t.length>0;)e.push(t.splice(0,4));return e},t.prototype.from_hue=function(t){if(null==t)throw"from_hue needs an argument";return this.col[0].set_hue(t),this},t.prototype.rgb2ryb=function(){var t,n,r,o,a,u,s,h,l;return s=1<=arguments.length?e.call(arguments,0):[],null!=s[0]&&i(s[0])&&(s=s[0]),u=s[0],n=s[1],t=s[2],h=Math.min(u,n,t),u-=h,n-=h,t-=h,o=Math.max(u,n,t),l=Math.min(u,n),u-=l,n-=l,t>0&&n>0&&(t/=2,n/=2),l+=n,t+=n,a=Math.max(u,l,t),a>0&&(r=o/a,u*=r,l*=r,t*=r),u+=h,l+=h,t+=h,[Math.floor(u),Math.floor(l),Math.floor(t)]},t.prototype.rgb2hsv=function(){var t,n,r,o,a,u,s,h,l,c;return h=1<=arguments.length?e.call(arguments,0):[],null!=h[0]&&i(h[0])&&(h=h[0]),s=h[0],r=h[1],t=h[2],s/=255,r/=255,t/=255,u=Math.min.apply(Math,[s,r,t]),a=Math.max.apply(Math,[s,r,t]),n=a-u,c=a,n>0?(l=n/a,o=s===a?(r-t)/n:r===a?2+(t-s)/n:4+(s-r)/n,o*=60,o%=360,[o,l,c]):[0,0,c]},t.prototype.rgbToHsv=function(){var t,n,r,o,a,u,s,h,l,c;if(h=1<=arguments.length?e.call(arguments,0):[],null!=h[0]&&i(h[0])&&(h=h[0]),s=h[0],r=h[1],t=h[2],s/=255,r/=255,t/=255,a=Math.max(s,r,t),u=Math.min(s,r,t),o=void 0,l=void 0,c=a,n=a-u,l=0===a?0:n/a,a===u)o=0;else{switch(a){case s:o=(r-t)/n+(r<t?6:0);break;case r:o=(t-s)/n+2;break;case t:o=(s-r)/n+4}o/=6}return[o,l,c]},t.prototype.from_hex=function(t){var e,n,r,o,a,i,u,s,h,l,c;if(null==t)throw"from_hex needs an argument";if(!/^([0-9A-F]{2}){3}$/im.test(t))throw"from_hex("+t+") - argument must be in the form of RRGGBB";return h=/(..)(..)(..)/.exec(t).slice(1,4),u=function(){var t,e,n;for(n=[],e=0,t=h.length;e<t;e++)a=h[e],n.push(parseInt(a,16));return n}(),i=u[0],n=u[1],e=u[2],s=this.rgb2ryb([i,n,e]),i=s[0],n=s[1],e=s[2],o=this.rgbToHsv(i,n,e),o[0],0,1e3,null,null,r=null,l=null,c=null,r=o[0],l=o[1],c=o[2],this.from_hue(360*r),this._set_variant_preset([l,c,l,.7*c,.25*l,1,.5*l,1]),this},t.prototype.add_complement=function(t){if(null==t)throw"add_complement needs an argument";return this._add_complement=t,this},t.prototype.web_safe=function(t){if(null==t)throw"web_safe needs an argument";return this._web_safe=t,this},t.prototype.distance=function(t){if(null==t)throw"distance needs an argument";if(t<0)throw"distance("+t+") - argument must be >= 0";if(t>1)throw"distance("+t+") - argument must be <= 1";return this._distance=t,this},t.prototype.scheme=function(e){if(null==e)return this._scheme;if(null==t.SCHEMES[e])throw"'"+e+"' isn't a valid scheme name";return this._scheme=e,this},t.prototype.variation=function(e){if(null==e)throw"variation needs an argument";if(null==t.PRESETS[e])throw"'$v' isn't a valid variation name";return this._set_variant_preset(t.PRESETS[e]),this},t.prototype._set_variant_preset=function(t){var e,n,r;for(r=[],e=n=0;n<=3;e=++n)r.push(this.col[e].set_variant_preset(t));return r},n=function(t){var e,r,o;if(null==t||"object"!=typeof t)return t;if(t instanceof Date)return new Date(t.getTime());if(t instanceof RegExp)return e="",null!=t.global&&(e+="g"),null!=t.ignoreCase&&(e+="i"),null!=t.multiline&&(e+="m"),null!=t.sticky&&(e+="y"),new RegExp(t.source,e);o=new t.constructor;for(r in t)o[r]=n(t[r]);return o},t.mutablecolor=function(){function e(e){if(null==e)throw"No hue specified";this.saturation=[],this.value=[],this.base_red=0,this.base_green=0,this.base_blue=0,this.base_saturation=0,this.base_value=0,this.set_hue(e),this.set_variant_preset(t.PRESETS.default)}return e.prototype.hue=0,e.prototype.saturation=[],e.prototype.value=[],e.prototype.base_red=0,e.prototype.base_green=0,e.prototype.base_saturation=0,e.prototype.base_value=0,e.prototype.get_hue=function(){return this.hue},e.prototype.set_hue=function(e){var n,r,o,a,i,u,s,h,l,c;n=function(t,e,n){return t+Math.round((e-t)*n)},this.hue=Math.round(e%360),i=this.hue%15+(this.hue-Math.floor(this.hue)),c=i/15,u=this.hue-Math.floor(i),s=(u+15)%360,360===u&&(u=0),360===s&&(s=0),o=t.COLOR_WHEEL[u],a=t.COLOR_WHEEL[s],h={red:0,green:1,blue:2,value:3};for(r in h)l=h[r],this["base_"+r]=n(o[l],a[l],c);return this.base_saturation=n(100,100,c)/100,this.base_value/=100},e.prototype.rotate=function(t){var e;return e=(this.hue+t)%360,this.set_hue(e)},e.prototype.get_saturation=function(t){var e,n;return n=this.saturation[t],e=n<0?-n*this.base_saturation:n,e>1&&(e=1),e<0&&(e=0),e},e.prototype.get_value=function(t){var e,n;return n=this.value[t],e=n<0?-n*this.base_value:n,e>1&&(e=1),e<0&&(e=0),e},e.prototype.set_variant=function(t,e,n){return this.saturation[t]=e,this.value[t]=n},e.prototype.set_variant_preset=function(t){var e,n,r;for(r=[],e=n=0;n<=3;e=++n)r.push(this.set_variant(e,t[2*e],t[2*e+1]));return r},e.prototype.get_hex=function(t,e){var n,r,o,a,i,u,s,h,l,c,f,p,_,m,d,v;for(l=Math.max.apply(Math,function(){var t,e,n,o;for(n=["red","green","blue"],o=[],e=0,t=n.length;e<t;e++)r=n[e],o.push(this["base_"+r]);return o}.call(this)),Math.min.apply(Math,function(){var t,e,n,o;for(n=["red","green","blue"],o=[],e=0,t=n.length;e<t;e++)r=n[e],o.push(this["base_"+r]);return o}.call(this)),v=255*(e<0?this.base_value:this.get_value(e)),m=e<0?this.base_saturation:this.get_saturation(e),i=l>0?v/l:0,p=[],f=["red","green","blue"],h=0,u=f.length;h<u;h++)r=f[h],_=Math.min.apply(Math,[255,Math.round(v-(v-this["base_"+r]*i)*m)]),p.push(_);for(t&&(p=function(){var t,e,r;for(r=[],e=0,t=p.length;e<t;e++)n=p[e],r.push(51*Math.round(n/51));return r}()),o="",c=0,s=p.length;c<s;c++)a=p[c],d=a.toString(16),d.length<2&&(d="0"+d),o+=d;return o},e}(),t}(),"undefined"!=typeof module&&null!==module&&null!=module.exports?module.exports=t:"function"==typeof define&&define.amd?define([],function(){return t}):window.ColorScheme=t}).call(this);