in src/components/typography.tsx [146:162]
export function getNegativeColor(color: string): string {
const colors = color
.substr(0, color.length)
.split('rgb(')[1]
.split(',')
.map(c => +c);
let R = +colors[0];
let G = Math.floor(+colors[1] * 1.8);
let B = Math.floor(+colors[2] * 1.8);
R = R < 255 ? R : 255;
G = G < 255 ? G : 255;
B = B < 255 ? B : 255;
return `rgb(${R},${G},${B})`;
}