35 lines
754 B
JavaScript
35 lines
754 B
JavaScript
import { map } from 'lodash'
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const rgb2hex = (r, g, b) => {
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[r, g, b] = map([r, g, b], (val) => {
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val = Math.ceil(val)
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val = val < 0 ? 0 : val
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val = val > 255 ? 255 : val
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return val
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})
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return `#${((1 << 24) + (r << 16) + (g << 8) + b).toString(16).slice(1)}`
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}
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const hex2rgb = (hex) => {
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const result = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.exec(hex)
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return result ? {
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r: parseInt(result[1], 16),
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g: parseInt(result[2], 16),
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b: parseInt(result[3], 16)
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} : null
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}
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const rgbstr2hex = (rgb) => {
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if (rgb[0] === '#') {
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return rgb
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}
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rgb = rgb.match(/\d+/g)
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return `#${((Number(rgb[0]) << 16) + (Number(rgb[1]) << 8) + Number(rgb[2])).toString(16)}`
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}
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export {
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rgb2hex,
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hex2rgb,
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rgbstr2hex
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}
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