Vivid palette

Signal

Three widely spaced hues for charts where every series must be told apart.

Signal swatches

3 colors · 4 of 6 pairs carry body text

Vivid

#702310

dark vivid red

#68BF69

mid soft green

#CEC3FF

very light intense blue

CSS

:root {
  --signal-1: #702310;
  --signal-2: #68bf69;
  --signal-3: #cec3ff;
}

Drop these into :root and reference them anywhere. The names follow the palette so a second palette will not collide with this one.

Take it further

This palette is a starting point. Open it in the generator to change the harmony rule, lock the colors you like and shuffle the rest.

Open in the palette generator Check the first pair for contrast

Which color can sit on which

4 of 6 pairs reach 4.5:1

Contrast ratio of every color in this palette against every other.
On ↓ / text → #702310#68BF69#CEC3FF
#702310 Same 4.77 6.65
#68BF69 4.77 Same 1.39
#CEC3FF 6.65 1.39 Same

Read a row as the background and a column as the text on it. Anything at 4.5:1 or above carries body text; 3:1 covers large text and interface parts.