Jewel Tones Palette

Using this palette

The defining trait of an actual jewel tone is depth, not brightness — these four hues are all fairly dark and heavily saturated rather than light and bright, which is what separates 'jewel tones' from a generic bright-color palette, and #1A1A1A (onyx) is included specifically to give the set a neutral dark to rest against. Because every hue swatch is dark, all four carry white or cream text comfortably. Suited to luxury retail, gaming, or editorial brands wanting richness without going full gold/luxury-gold territory; using more than two of the jewel hues in equal proportion on one screen tends to compete rather than harmonize, so pick a lead color.