Version: 2018.3 (switch to 2019.1)
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Random.ColorHSV

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public static Color ColorHSV();
public static Color ColorHSV(float hueMin, float hueMax);
public static Color ColorHSV(float hueMin, float hueMax, float saturationMin, float saturationMax);
public static Color ColorHSV(float hueMin, float hueMax, float saturationMin, float saturationMax, float valueMin, float valueMax);
public static Color ColorHSV(float hueMin, float hueMax, float saturationMin, float saturationMax, float valueMin, float valueMax, float alphaMin, float alphaMax);

Parameters

hueMinMinimum hue [0..1].
hueMaxMaximum hue [0..1].
saturationMinMinimum saturation [0..1].
saturationMaxMaximum saturation[0..1].
valueMinMinimum value [0..1].
valueMaxMaximum value [0..1].
alphaMinMinimum alpha [0..1].
alphaMaxMaximum alpha [0..1].

Returns

Color A random color with HSV and alpha values in the input ranges.

Description

Generates a random color from HSV and alpha ranges.

using UnityEngine;

public class ColorOnClick : MonoBehaviour
{
    void OnMouseDown()
    {
        // Pick a random, saturated and not-too-dark color
        GetComponent<Renderer>().material.color = Random.ColorHSV(0f, 1f, 1f, 1f, 0.5f, 1f);
    }
}

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Copyright © 2019 Unity Technologies. Publication: 2018.3-002V. Built: 2019-04-15.
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