Series colors for a slide or a manuscript figure

The colors hv_ppt_series() assigns, handed back as a plain character vector. This is the single definition of the series colors, so reach for it when a figure needs them outside the decorator rather than pasting hex codes into a script, where they drift the first time the palette changes.

Usage

hv_ppt_palette(mode = c("dark", "light"), n = NULL)

Arguments

mode

Slide or figure background. "dark" pairs with theme_hv_ppt_dark(), "light" with theme_hv_ppt_light() and theme_hv_manuscript().

n

Number of colors to return, or NULL (default) for all six.

Value

A character vector of hex colors, in series order.

Details

The colors are the Okabe-Ito colorblind-safe palette, reordered for the background: high-luminance hues first on a dark slide, darker ones first on a light slide. Each ordering leads with its highest-contrast hue, 15.9:1 on a black panel and 5.2:1 on a white one, but past that first entry the order is not a contrast ranking and should not be read as one. Black appears only in the light ordering, and it sits last there despite carrying the highest ratio of anything here (21:1 on white): house style draws annotation in the theme's ink, so a black series would be confusable with the label naming it. On a dark panel black is invisible, which is why that ordering omits it. These are not CORR brand colors.

Six colors are supplied. Ask for more than that and you get an error rather than a silently recycled palette, because two series sharing a color is a worse outcome than a stopped script.

See also

hv_ppt_series(), which applies these to a plot. Annotation text is drawn in the theme's ink, matching the axis, rather than in a series color, so these are not the values to label a curve with.

Examples

hv_ppt_palette("dark")
#> [1] "#F0E442" "#56B4E9" "#E69F00" "#009E73" "#CC79A7" "#D55E00"
hv_ppt_palette("light", n = 4)
#> [1] "#0072B2" "#D55E00" "#009E73" "#CC79A7"