Slack

Although Slack is a communication platform for work, its color palette is anything but boring. The primary Slack color is aubergine, which stands for creativity, curiosity, and intelligence.

For the secondary colors, Slack has adopted the 4 classic color pairings: blue, green, red, and yellow. They're shown in the logo and also used as accents throughout the platform. Their palette greatly expresses Slack's personality as human, warm, quirky but not silly, thoughtful, and collaborative.^[1]