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October 4, 2023 08:55
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Convert ANSI color 0-255 to RGB
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| const low_rgb = [ | |
| '#000000', '#800000', '#008000', '#808000', '#000080', '#800080', '#008080', '#c0c0c0', | |
| '#808080', '#ff0000', '#00ff00', '#ffff00', '#0000ff', '#ff00ff', '#00ffff', '#ffffff' | |
| ] | |
| function ansi_rgb(ansi) { | |
| if (ansi < 0 || ansi > 255) return '#000' | |
| if (ansi < 16) return low_rgb[ansi] | |
| if (ansi > 231) { | |
| const s = (ansi - 232) * 10 + 8 | |
| return `rgb(${s},${s},${s})` | |
| } | |
| const n = ansi - 16 | |
| let b = n % 6 | |
| let g = (n - b) / 6 % 6 | |
| let r = (n - b - g * 6) / 36 % 6 | |
| b = b ? b * 40 + 55 : 0 | |
| r = r ? r * 40 + 55 : 0 | |
| g = g ? g * 40 + 55 : 0 | |
| return `rgb(${r},${g},${b})` | |
| } |
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low_rgb can change with terminal color theme