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PlantUML Language specification Color Names

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颜色

您可以指定填充色和线条颜色：

特殊颜色值: transparent 同样可以使用, 同义词是 transparent black (#00000000).

甘特图示例:

🎉 Copied! 

@startgantt
[活动1] lasts 5 days
[活动2] lasts 5 days
[活动1] is colored in White/Red
[活动2] is colored in Silver/SeaGreen
[活动1] -> [活动2]
@endgantt

时序图示例:

🎉 Copied! 

@startuml
actor Bob #Red/Yellow
actor Alice #FF0000/FFFF00
Alice -> Bob : hello
@enduml

这里使用的是颜色渐变，请参阅下一节。 另参考 skinparam.

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颜色渐变

您也可以在背景中使用颜色渐变，语法如下：两个颜色名称之间用：

参见上一节，以及类图页面上的颜色渐变。

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Automatic Font Color

PlantUML allows dynamic font color selection using the #? syntax. The system automatically chooses between two colors based on the current background color to ensure optimal contrast and readability.

How It Works:

Thus, the #?black:white syntax ensures that text remains legible across different background colors.

🎉 Copied! 

@startuml
<style>
document {
  BackGroundColor darkblue
}
root {
  FontColor #?black:white
  LineColor white
}
</style>
alice -> bob : hello
@enduml

In this example, since the background is dark blue, the font color automatically switches to white for better contrast in the message "hello", while keeping black for the participant labels.

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Color with preprocessing

You can manipulate color with Preprocessing, and the Builtin functions:

Name Description Example Return
%darken Return a darken color of a given color with some ratio %darken("red", 20) #CC0000
%is_dark Check if a color is a dark one %is_dark("#000000") true
%is_light Check if a color is a light one %is_light("#000000") false
%lighten Return a lighten color of a given color with some ratio %lighten("red", 20) #CC3333
%reverse_color Reverse a color using RGB %reverse_color("#FF7700") #0088FF
%reverse_hsluv_color Reverse a color using HSLuv %reverse_hsluv_color("#FF7700") #602800

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查看PlantUML中的颜色

一个用户最近创建了一个图片来显示PlantUML使用的所有名字的颜色。(我们顺便感谢他!)

所以我们增加了一个新的功能，用一个特殊的图示描述来打印所有这些颜色：

🎉 Copied! 

@startuml
colors
@enduml

也可以打印接近其他颜色的调色板（使用其名称或HEX值）。

🎉 Copied! 

@startuml
colors chocolate
@enduml

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Archimate 颜色

Archimate使用反映节点目的的颜色名称：

🎉 Copied! 

@startuml
skinparam minClassWidth 125
skinparam nodesep 10
skinparam ranksep 10

rectangle Application    #Application
rectangle Business       #Business
rectangle Implementation #Implementation
rectangle Motivation     #Motivation
rectangle Physical       #Physical
rectangle Strategy       #Strategy
rectangle Technology     #Technology
@enduml

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PlantUML colors

🎉 Copied! 

@startuml
skinparam minClassWidth 200
skinparam nodesep 10
skinparam ranksep 10

rectangle "ClassColor" {
rectangle "Class_C_Background\n #ADD1B2" #ADD1B2
rectangle "Class_N_Background\n #E3664A" #E3664A
rectangle "Class_A_Background\n #A9DCDF" #A9DCDF
rectangle "Class_I_Background\n #B4A7E5" #B4A7E5
rectangle "Class_E_Background\n #EB937F" #EB937F
}
rectangle "DefaultColor" {
rectangle "BackGroundColor_Default\n #FEFECE" #FEFECE
rectangle "LineColor_Default\n #A80036"       #A80036
rectangle "Legend_BackGroundColor\n #DDDDDD"   #DDDDDD
rectangle "//TBC//\n..."
}
@enduml