colorsys — Conversions between color systems颜色系统之间的转换¶
Source code: Lib/colorsys.py
The colorsys module defines bidirectional conversions of color values between colors expressed in the RGB (Red Green Blue) color space used in computer monitors and three other coordinate systems: YIQ, HLS (Hue Lightness Saturation) and HSV (Hue Saturation Value). colorsys模块定义了在计算机显示器中使用的RGB（红-绿-蓝）颜色空间中表示的颜色与其他三个坐标系之间的颜色值的双向转换：YIQ、HLS（色调亮度饱和度）和HSV（色调饱和度值）。Coordinates in all of these color spaces are floating point values. 所有这些颜色空间中的坐标都是浮点值。In the YIQ space, the Y coordinate is between 0 and 1, but the I and Q coordinates can be positive or negative. 在YIQ空间中，Y坐标在0和1之间，但I和Q坐标可以为正或负。In all other spaces, the coordinates are all between 0 and 1.在所有其他空间中，坐标都在0和1之间。
See also
More information about color spaces can be found at https://poynton.ca/ColorFAQ.html and https://www.cambridgeincolour.com/tutorials/color-spaces.htm.有关颜色空间的更多信息，请访问https://poynton.ca/ColorFAQ.html和https://www.cambridgeincolour.com/tutorials/color-spaces.htm。
The colorsys module defines the following functions:colorsys模块定义了以下功能：
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colorsys.rgb_to_yiq(r, g, b)¶ Convert the color from RGB coordinates to YIQ coordinates.将颜色从RGB坐标转换为YIQ坐标。
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colorsys.yiq_to_rgb(y, i, q)¶ Convert the color from YIQ coordinates to RGB coordinates.将颜色从YIQ坐标转换为RGB坐标。
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colorsys.rgb_to_hls(r, g, b)¶ Convert the color from RGB coordinates to HLS coordinates.将颜色从RGB坐标转换为HLS坐标。
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colorsys.hls_to_rgb(h, l, s)¶ Convert the color from HLS coordinates to RGB coordinates.将颜色从HLS坐标转换为RGB坐标。
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colorsys.rgb_to_hsv(r, g, b)¶ Convert the color from RGB coordinates to HSV coordinates.将颜色从RGB坐标转换为HSV坐标。
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colorsys.hsv_to_rgb(h, s, v)¶ Convert the color from HSV coordinates to RGB coordinates.将颜色从HSV坐标转换为RGB坐标。
Example:例子：
>>> import colorsys
>>> colorsys.rgb_to_hsv(0.2, 0.4, 0.4)
(0.5, 0.5, 0.4)
>>> colorsys.hsv_to_rgb(0.5, 0.5, 0.4)
(0.2, 0.4, 0.4)