React Js Change text color based on brightness background

React Js Change text color based on brightness background:In React.js, you can change the text color based on the brightness of the background by using a combination of JavaScript and CSS. First, you can calculate the brightness of the background color using a color manipulation. Then, based on the calculated brightness value, you can conditionally apply a CSS class to the text element. This CSS class can define the desired text color, such as white for dark backgrounds and black for light backgrounds. By dynamically updating the text color class based on the background brightness, you can achieve the desired effect of adapting the text color to the background.

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How can I change the text color in React.js based on the brightness of the background?

The provided code is a React.js component that displays a set of colored divs with corresponding text. The text color is dynamically changed based on the brightness of the background color.

The component defines an array of colors and renders a container div. Inside the container, it maps through the colors array and generates a color-div for each color. Each color-div has a background color set based on the current color from the array.

For each color-div, a ColorText component is rendered. The ColorText component takes the background color as a prop and calculates its brightness using a helper function. If the background is considered dark (brightness < 128), the text color is set to white; otherwise, it is set to black. The calculated text color is stored in the component's state.

The ColorText component renders an h2 heading element with the background color and dynamically sets the text color based on the state's textColor value.