绘画上色时，该如何给白色的衣服上色？上阴影时，该选哪种颜色比较好？
绘画上色时，该如何给白色的衣服上色？上阴影时，该选哪种颜色比较好？
阴影是不会固定的，颜色也跟环境变化，多观察生活 比如一个吃饭的碗 他是什么阴影 他的虚实变化 一个不规则物体的阴影 只有当你热爱生活善于发现美 你才会跳脱那些绘画上的禁锢
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任何物体，在色彩绘画里，都要考虑到光源色，物体固有色，物体周围的环境色。白色的衣服，本身就是白色的，但是我们在色彩表达的时候并不是直接用白色的，光是暖色时，受光面白色要带有暖的黄色，橙色等，暗面偏冷色，带点蓝色，等，如果光源色的冷色光，那刚好跟暖光相反。再加上环境色，说起来挺简单，但要画好也不是那么容易的，多多练习，领悟吧，有的东西真的是可意会不可言传的。慢慢体会吧！你看下面这些画里的白布，都不是纯白色画的，但我们就能知道是白色的，色彩运用的好
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你提出了一个我们在绘画中实际遇到的问题，从写实绘画的角度来说，白色衣服受光面的颜色应该是固有色加光源色，阴影部分应该是固有色加环境色的混合。
如果把白色衣服的受光面和阴影部分的颜色，给出一个数量值显然过于简单，我们还是要从物体受光照对颜色的影响来分析。
我们知道物体呈现出的颜色是由光照的作用、衣服的固有色和环境光三方面作用的结果。那么为什么不能给出一个白色衣服的固定颜色值呢？因为这还要具体看光源色的强度和色相。
一、拿白色衣服的受光面来说，其一、如果光照强度大白色衣服呈现的光源色越明显占比重越大，白色固有色减弱。如果光照强度弱，光源色影响减弱，固有色白色越明显；其二、是光源色色相的作用，光源色所呈现的色温（色相）对白色衣服的影响。例如，在晴天日光下，由于光照的作用白色衣服会呈现一部分蓝色加固有色白色；如果是夕阳下、或是在炉火旁，白色衣服会呈现更多的光源色成分，此时白色衣服可能呈现的是暖黄色，其光照强度越强烈，颜色影响越明显。
二、白色衣服阴影部分的颜色。物体阴影部分颜色受环境光的影响比较大，因此白色衣服阴影部分的颜色，除了反映其本身的固有色白色，还要受环境光的影响。其颜色也是由环境光的强度来决定，环境光照强度越大，衣服阴影部分反映环境光的颜色越明显，反之环境光源色则减弱。
因此，画白色衣服的颜色，我们要多观察环境光源色的强度和色温，了解光源色、固有色和环境色三者对白色衣服受光面和阴影颜色的作用，再加以实践，一定能有所进步。
附上两张油画作品，你可以看到光源色对衣服颜色的影响作用。
配图来源于网络，谢谢！
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白色可以反射所有波长的光，而不像红色主要反射红色波长的光。当所有波长的光在一起，人眼看到的显示白色。所以红光照射在白色衣服上，白色衣服偏红。绘画可以是线条艺术，如果主要表现线条美，白色就是留白加上线条褶皱，绘画也可以是光影艺术，如果需要展现光影感，画白色衣服时候就需要考虑环境光，夕阳下的白色衣服，呈现金黄，橙黄，或者霞光及蓝色，如果是烈日下的白色衣服，高光区留白而阴影部分则是灰阶或者灰紫蓝色。具体的颜色没有一个标准，主要看绘画者当时的观察，想象和感受，如果世界上有所谓的标准用色，那一定不适合绘画艺术，只能是绘画生产。
绘画是一种表达方式。点 线 面 色彩等等只是手段，画作带给人的感觉 情绪和联想才是重要的。从某种意义上讲，画是光影的艺术。在画家的眼里，色彩具有色相 色调 明度等等的不同。《打伞女人》是印象派大师莫奈的作品，同一条白裙子由于在不同的天光之下，呈现出一冷一暖两种色调。绘画可不是上色那么简单，观察光影中千姿百态的白，才能体味出色彩的真谛。
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白色衣服一般情况下是拿淡蓝色或浅色勾边，上阴影时，用浅灰色
