UNPKG

matercolors

Version:

A tiny, zero-dependency libary for building harmonious material palettes for any color.

3 lines (2 loc) 20.3 kB
const e=[50,100,200,300,400,500,600,700,800,900,"A100","A200","A400","A700"],n={threshold:128,light:200,main:500,dark:700};function t(e){const n=e.r/255,t=e.g/255,w=e.b/255,r=Math.min(n,t,w),a=Math.max(n,t,w),h=a-r;let s=0,o=0,F=0;return s=0===h?0:a===n?(t-w)/h%6:a===t?(w-n)/h+2:(n-t)/h+4,s=Math.round(60*s),s<0&&(s+=360),F=(a+r)/2,o=0===h?0:h/(1-Math.abs(2*F-1)),o=+(100*o).toFixed(1),F=+(100*F).toFixed(1),{h:s,s:o,l:F,string:`hsl(${s},${o}%,${F}%)`}}function w(e){const n=e.r/255,t=e.g/255,w=e.b/255;let r=Math.min(1-n,1-t,1-w);const a=parseFloat((100*((1-n-r)/(1-r)||0)).toFixed(4)),h=parseFloat((100*((1-t-r)/(1-r)||0)).toFixed(4)),s=parseFloat((100*((1-w-r)/(1-r)||0)).toFixed(4));return r*=100,r=parseFloat(r.toFixed(4)),{c:a,y:s,m:h,k:r,string:`cymk(${a}%,${s}%,${h}%,${r}%)`}}function r(e){const n=/^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.exec(e);return n?{r:parseInt(n[1],16),g:parseInt(n[2],16),b:parseInt(n[3],16)}:{}}function a(e){return{red:e.r/255,green:e.g/255,blue:e.b/255,alpha:1}}function h(e){const n=e.toString(16);return 1===n.length?"0"+n:n}function s(e,n,t){return`#${h(e)}${h(n)}${h(t)}`}function o({r:e,g:n,b:t},w){return(Math.round(299*e)+Math.round(587*n)+Math.round(114*t))/1e3>=w?"black":"white"}function F(e,n,t){if(Number.isNaN(e)||e<0||e>n)throw new RangeError(`${e} for ${t} is not between 0 and ${n}`)}function i(e){return e<=.04045?e/12.92:((e+.055)/1.055)**2.4}function l(e){return e>(6/29)**3?e**(1/3):1/(3*(6/29)**2)*e+4/29}function u(e,n,t){return Math.min(Math.max(e,n),t)}function c(e){return e<=.0031308?12.92*e:1.055*e**(1/2.4)-.055}function M(e){return e>6/29?e**3:3*(6/29)**2*(e-4/29)}function g(e,n){if(Math.abs(e)<1e-4&&Math.abs(n)<1e-4)return 0;const t=180*Math.atan2(e,n)/Math.PI;return t>=0?t:t+360}class d{constructor(e,n,t,w){const r=void 0===w?1:w;this.red=e,this.green=n,this.blue=t,this.alpha=r,F(e,1,"red"),F(n,1,"green"),F(t,1,"blue"),F(r,1,"alpha")}}class 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f(a(r("#B9F6CA"))),new f(a(r("#69F0AE"))),new f(a(r("#00E676"))),new f(a(r("#00C853")))],[new f(a(r("#CCFF90"))),new f(a(r("#B2FF59"))),new f(a(r("#76FF03"))),new f(a(r("#64DD17")))],[new f(a(r("#F4FF81"))),new f(a(r("#EEFF41"))),new f(a(r("#C6FF00"))),new f(a(r("#AEEA00")))],[new f(a(r("#FFFF8D"))),new f(a(r("#FFFF00"))),new f(a(r("#FFEA00"))),new f(a(r("#FFD600")))],[new f(a(r("#FFE57F"))),new f(a(r("#FFD740"))),new f(a(r("#FFC400"))),new f(a(r("#FFAB00")))],[new f(a(r("#FFD180"))),new f(a(r("#FFAB40"))),new f(a(r("#FF9100"))),new f(a(r("#FF6D00")))],[new f(a(r("#FF9E80"))),new f(a(r("#FF6E40"))),new f(a(r("#FF3D00"))),new f(a(r("#DD2C00")))]],B=[2.048875457,5.124792061,8.751659557,12.07628774,13.91449542,15.92738893,15.46585818,15.09779227,15.13738673,15.09818372],$=[1.762442714,4.213532634,7.395827458,11.07174158,13.89634504,16.37591477,16.27071136,16.54160806,17.35916727,19.88410864];function x(e,n){const t=n?2:5;let w;w=void 0===w?n?E:m:w;const r=f(e);let a=function(e,n,t){const w=void 0===n?t?E:m:n;let r=w[0],a=-1;if(!w.length||!w[0].length)throw Error("Invalid golden palettes");for(let n=Infinity,t=0;t<w.length;t+=1)for(let h=0;h<w[t].length&&n>0;h+=1){let s=w[t][h];const o=(s.g+e.g)/2;let F=Math.sqrt(s.A**2+s.B**2),i=Math.sqrt(e.A**2+e.B**2),l=(F+i)/2;l=.5*(1-Math.sqrt(l**7/(l**7+25**7)));let u=s.A*(1+l),c=e.A*(1+l),M=Math.sqrt(u**2+s.B**2),d=Math.sqrt(c**2+e.B**2);l=d-M;const b=(M+d)/2;u=g(s.B,u),c=g(e.B,c),M=2*Math.sqrt(M*d)*Math.sin((Math.abs(F)<1e-4||Math.abs(i)<1e-4?0:Math.abs(c-u)<=180?c-u:c<=u?c-u+360:c-u-360)/2*Math.PI/180),F=Math.abs(F)<1e-4||Math.abs(i)<1e-4?0:Math.abs(c-u)<=180?(u+c)/2:u+c<360?(u+c+360)/2:(u+c-360)/2,i=1+.045*b,d=1+.015*b*(1-.17*Math.cos((F-30)*Math.PI/180)+.24*Math.cos(2*F*Math.PI/180)+.32*Math.cos((3*F+6)*Math.PI/180)-.2*Math.cos((4*F-63)*Math.PI/180)),s=Math.sqrt(((e.g-s.g)/(1+.015*(o-50)**2/Math.sqrt(20+(o-50)**2)))**2+(l/(1*i))**2+(M/(1*d))**2+l/(1*i)*Math.sqrt(b**7/(b**7+25**7))*Math.sin(60*Math.exp(-(((F-275)/25)**2))*Math.PI/180)*-2*(M/(1*d))),s<n&&(n=s,r=w[t],a=h)}return{fd:r,ed:a}}(r,w,n);w=a.fd,a=a.ed;const h=w[a],s=p(h),o=p(r),F=p(w[t]).T<30,i=s.g-o.g,l=s.T-o.T,x=s.hue-o.hue,D=B[a],I=$[a];let y=100;return w.map((n,t)=>{let w=n,r=t;if(w===h)return y=Math.max(o.g-1.7,0),e;w=p(w);let a=w.g-B[r]/D*i;a=Math.min(a,y),r=new b(u(a,0,100),Math.max(0,F?w.T-l:w.T-l*Math.min($[r]/I,1.25)),(w.hue-x+360)%360),y=Math.max(r.g-1.7,0),w=r.hue*Math.PI/180,r=new A(r.g,r.T*Math.cos(w),r.T*Math.sin(w),r.alpha);let s=(r.g+16)/116;return w=.95047*M(s+r.A/500),a=1*M(s),s=1.08883*M(s-r.B/200),new d(u(c(3.2404542*w+-1.5371385*a+-.4985314*s),0,1),u(c(-.969266*w+1.8760108*a+.041556*s),0,1),u(c(.0556434*w+-.2040259*a+1.0572252*s),0,1),r.alpha)})}export default class{constructor(e,t){this.color=e;const w=function(e){const n=r(e);let t=n.r/255,w=n.g/255,a=n.b/255;const h=Math.max(t,w,a),s=Math.min(t,w,a);let o,F;const i=(h+s)/2;if(h===s)o=0,F=0;else{const e=h-s;F=i>.5?e/(2-h-s):e/(h+s),h===t&&w>=a?o=1.0472*(w-a)/e:h===t&&w<a?o=1.0472*(w-a)/e+6.2832:h===w?o=1.0472*(a-t)/e+2.0944:h===a&&(o=1.0472*(t-w)/e+4.1888)}if(o=o/6.2832*360+0,o+=180,o>360&&(o-=360),o/=360,0===F)t=i,w=i,a=i;else{const e=function(e,n,t){let w=t;return w<0&&(w+=1),w>1&&(w-=1),w<1/6?e+6*(n-e)*w:w<.5?n:w<2/3?e+(n-e)*(2/3-w)*6:e},n=i<.5?i*(1+F):i+F-i*F,r=2*i-n;t=e(r,n,o+1/3),w=e(r,n,o),a=e(r,n,o-1/3)}return t=Math.round(255*t),w=Math.round(255*w),a=Math.round(255*a),"#"+(a|w<<8|t<<16|16777216).toString(16).substring(1)}(e);this.complementary=()=>w,this.options=t?Object.assign(n,t):n;const a={};this.palette=()=>a,this.getPalette()}shades(e){return{light:this.palette()[e][this.options.light],main:this.palette()[e][this.options.main],dark:this.palette()[e][this.options.dark]}}accents(e){return{A100:this.palette()[e].A100,A200:this.palette()[e].A200,A400:this.palette()[e].A400,A700:this.palette()[e].A700}}getPalette(){this.palette().primary={},this.palette().secondary={};const n=x(a(r(this.color))).map(e=>s(Math.round(255*e.red),Math.round(255*e.green),Math.round(255*e.blue))),h=x(a(r(this.color)),!0).map(e=>s(Math.round(255*e.red),Math.round(255*e.green),Math.round(255*e.blue))),F=x(a(r(this.complementary()))).map(e=>s(Math.round(255*e.red),Math.round(255*e.green),Math.round(255*e.blue))),i=x(a(r(this.complementary())),!0).map(e=>s(Math.round(255*e.red),Math.round(255*e.green),Math.round(255*e.blue)));n.push(...h);for(let a=0;a<e.length;a+=1){const h={};h.hex=n[a],h.rgb=r(n[a]),h.rgb.string=`rgb(${h.rgb.r},${h.rgb.g},${h.rgb.b})`,h.hsl=t(h.rgb),h.cymk=w(h.rgb),h.contrastText=o(h.rgb,this.options.threshold),this.palette().primary[e[a]]=h}F.push(...i);for(let n=0;n<e.length;n+=1){const a={};a.hex=F[n],a.rgb=r(F[n]),a.rgb.string=`rgb(${a.rgb.r},${a.rgb.g},${a.rgb.b})`,a.hsl=t(a.rgb),a.cymk=w(a.rgb),a.contrastText=o(a.rgb,this.options.threshold),this.palette().secondary[e[n]]=a}}} //# sourceMappingURL=index.modern.js.map