Documentation
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Overview ¶
Package palette provides colours and colour sequences for charts.
The default qualitative sequence is Okabe-Ito, which is designed to remain distinguishable under the common forms of colour vision deficiency. Charts should also encode series redundantly (dash patterns, marker shapes) — colour alone is never sufficient — but starting from a safe palette costs nothing.
Index ¶
Constants ¶
This section is empty.
Variables ¶
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var ( Blue = ir.RGB(0x00, 0x72, 0xB2) Orange = ir.RGB(0xE6, 0x9F, 0x00) SkyBlue = ir.RGB(0x56, 0xB4, 0xE9) Green = ir.RGB(0x00, 0x9E, 0x73) Yellow = ir.RGB(0xF0, 0xE4, 0x42) Vermilion = ir.RGB(0xD5, 0x5E, 0x00) Purple = ir.RGB(0xCC, 0x79, 0xA7) Black = ir.RGB(0x00, 0x00, 0x00) White = ir.RGB(0xFF, 0xFF, 0xFF) Red = ir.RGB(0xD5, 0x5E, 0x00) Gray = ir.RGB(0x88, 0x88, 0x88) )
Named colours used by the examples and the default theme.
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var Default = OkabeIto
Default is the palette refract uses when a theme does not override it.
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var OkabeIto = Qualitative{ Blue, Vermilion, Green, Yellow, SkyBlue, Orange, Purple, ir.RGB(0x00, 0x00, 0x00), }
OkabeIto is the default colourblind-safe qualitative palette.
Okabe & Ito, "Color Universal Design" (2008).
Functions ¶
This section is empty.
Types ¶
type Qualitative ¶
Qualitative is a sequence of categorical colours.
Source Files
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