色彩体系把值编码为映射到类别或大小的色相、明度与彩度。孟塞尔 1905；布鲁尔色板（1994–）用于地图；现代 CSS 的 OKLCH。
工作报告、广告与作业中适合图例、品牌系统、可访问的数据色。若彩虹默认，或一个色相编码两个量，换一种形式。
Parts
- 标记 — The core mark of 色彩体系 is 映射到类别或大小的色相、明度与彩度.
- 尺度 — The scale must show zero (or a declared break) and units.
- 轴 — Axis titles name the variable, not a mood.
- 图例 — A legend is weaker than a direct label. Write beside the mark when you can.
- 标签 — Numbers are optional. If comparison is the job, label the ends only.
- 网格 — Keep the grid faint. Data should own the ink.
- 注释 — One annotation sentence. Date the source.
- 外框 — A thin frame. Never a 3-D box.
Variants
- 色板 — Variant 1 of 色彩体系. Same encoding, different layout.
- 品牌色 — Variant 2 of 色彩体系. Same encoding, different layout.
- 顺序色阶 — Variant 3 of 色彩体系. Same encoding, different layout.
- 色彩体系 4 — Variant 4 of 色彩体系. Same encoding, different layout.
Labels
- 轴 — On 色彩体系, make Mark readable.
- 图例 — On 色彩体系, make Scale readable.
- 标签 — On 色彩体系, make Axis readable.
- 网格 — On 色彩体系, make Legend readable.
- 注释 — On 色彩体系, make Label readable.
色彩体系: honour 映射到类别或大小的色相、明度与彩度, and switch when 彩虹默认，或一个色相编码两个量.