130 lines
3.9 KiB
TypeScript
130 lines
3.9 KiB
TypeScript
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/**
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* 調整顏色亮度
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* @param hex 原始顏色的 HEX 值（例如 "#01ab83"）
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* @param percent 調整百分比，正值變亮，負值變暗
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* @returns 調整後的 HEX 色碼
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*/
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export function adjustBrightness(hex: string, percent: number): string {
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// 移除 # 符號
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const cleanHex = hex.replace('#', '');
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// 解析 RGB
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const num = parseInt(cleanHex, 16);
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const r = (num >> 16) & 0xFF;
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const g = (num >> 8) & 0xFF;
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const b = num & 0xFF;
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// 計算調整後的 RGB（確保在 0-255 範圍內）
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const newR = Math.min(255, Math.max(0, r + percent * 2.55));
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const newG = Math.min(255, Math.max(0, g + percent * 2.55));
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const newB = Math.min(255, Math.max(0, b + percent * 2.55));
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// 轉回 HEX
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const result = ((Math.round(newR) << 16) | (Math.round(newG) << 8) | Math.round(newB))
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.toString(16)
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.padStart(6, '0');
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return `#${result}`;
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}
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/**
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* 生成非常淺的背景色（類似原本的 primary-lightest: #e6f7f3）
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* 這個函式會保留原色的色調，但大幅提高亮度和降低飽和度
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* @param hex 原始顏色的 HEX 值
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* @returns 淺色背景的 HEX 色碼
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*/
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export function generateLightestColor(hex: string): string {
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const cleanHex = hex.replace('#', '');
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const num = parseInt(cleanHex, 16);
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const r = (num >> 16) & 0xFF;
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const g = (num >> 8) & 0xFF;
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const b = num & 0xFF;
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// 混合白色來創造非常淺的色調（90% 白色 + 10% 原色）
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const mixRatio = 0.1;
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const newR = Math.round(255 * (1 - mixRatio) + r * mixRatio);
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const newG = Math.round(255 * (1 - mixRatio) + g * mixRatio);
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const newB = Math.round(255 * (1 - mixRatio) + b * mixRatio);
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const result = ((newR << 16) | (newG << 8) | newB)
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.toString(16)
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.padStart(6, '0');
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return `#${result}`;
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}
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/**
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* 生成淺色（類似原本的 primary-light: #33bc9a）
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* @param hex 原始顏色的 HEX 值
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* @returns 淺色的 HEX 色碼
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*/
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export function generateLightColor(hex: string): string {
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const cleanHex = hex.replace('#', '');
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const num = parseInt(cleanHex, 16);
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const r = (num >> 16) & 0xFF;
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const g = (num >> 8) & 0xFF;
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const b = num & 0xFF;
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// 混合白色（70% 原色 + 30% 白色）
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const mixRatio = 0.7;
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const newR = Math.round(r * mixRatio + 255 * (1 - mixRatio));
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const newG = Math.round(g * mixRatio + 255 * (1 - mixRatio));
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const newB = Math.round(b * mixRatio + 255 * (1 - mixRatio));
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const result = ((newR << 16) | (newG << 8) | newB)
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.toString(16)
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.padStart(6, '0');
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return `#${result}`;
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}
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/**
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* 生成深色（類似原本的 primary-dark: #018a6a）
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* @param hex 原始顏色的 HEX 值
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* @returns 深色的 HEX 色碼
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*/
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export function generateDarkColor(hex: string): string {
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const cleanHex = hex.replace('#', '');
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const num = parseInt(cleanHex, 16);
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const r = (num >> 16) & 0xFF;
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const g = (num >> 8) & 0xFF;
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const b = num & 0xFF;
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// 降低亮度（80% 原色）
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const factor = 0.8;
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const newR = Math.round(r * factor);
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const newG = Math.round(g * factor);
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const newB = Math.round(b * factor);
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const result = ((newR << 16) | (newG << 8) | newB)
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.toString(16)
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.padStart(6, '0');
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return `#${result}`;
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}
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/**
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* 生成按鈕 active 狀態的顏色（比 dark 更深，約 60% 原色）
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* @param hex 原始顏色的 HEX 值
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* @returns 更深色的 HEX 色碼
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*/
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export function generateActiveColor(hex: string): string {
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const cleanHex = hex.replace('#', '');
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const num = parseInt(cleanHex, 16);
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const r = (num >> 16) & 0xFF;
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const g = (num >> 8) & 0xFF;
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const b = num & 0xFF;
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// 降低亮度（60% 原色）
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const factor = 0.6;
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const newR = Math.round(r * factor);
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const newG = Math.round(g * factor);
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const newB = Math.round(b * factor);
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const result = ((newR << 16) | (newG << 8) | newB)
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.toString(16)
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.padStart(6, '0');
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return `#${result}`;
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}
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