# GridColor
```csharp
public readonly struct GridColor
```
Namespace `SharpCell.Grid` ยท package `SharpCell.Grid`
An opaque or translucent sRGB colour.
## Constructors
### GridColor(byte, byte, byte, byte)
```csharp
public GridColor(byte R, byte G, byte B, byte A = 255)
```
An opaque or translucent sRGB colour.
**Parameters**
- `R`: Red, 0 to 255.
- `G`: Green, 0 to 255.
- `B`: Blue, 0 to 255.
- `A`: Opacity, 0 (transparent) to 255 (opaque).
## Properties
### A
```csharp
public byte A { get; init; }
```
Opacity, 0 (transparent) to 255 (opaque).
### B
```csharp
public byte B { get; init; }
```
Blue, 0 to 255.
### G
```csharp
public byte G { get; init; }
```
Green, 0 to 255.
### R
```csharp
public byte R { get; init; }
```
Red, 0 to 255.
## Methods
### FromRgb(int)
```csharp
public static GridColor FromRgb(int rgb)
```
An opaque colour from a 0xRRGGBB number.