Color
#5b1e71
#5b1e71rgb(91, 30, 113)hsl(284, 58%, 28%)oklch(0.37 0.142 315.6)Colors that go with #5b1e71
Crimson, Tomato and Forest Green lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.
Crimson #dc143c
shippedCrimson is paired with #5b1e71 in 4 real palettes, including Lenovo's brand system and Wells Fargo's brand system, as the supporting colour.
Tomato #ff6347
shipped4 real palettes, including FedEx's brand system and Golden Hour put Tomato beside #5b1e71, as the supporting colour.
Forest Green #228b22
complementaryForest Green sits directly opposite #5b1e71 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Charcoal #36454f
neutralshippedCharcoal is the text near-black for #5b1e71: softer than #000 and cool enough to feel like part of the same palette.
Teal #008080
triadicshippedTeal completes a triad with #5b1e71 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Sea Green #2e8b57
split-complementSea Green is a split-complement of #5b1e71: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Olive Green #808000
split-complementOlive Green is a split-complement of #5b1e71: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Slate Blue #6a5acd
analogousshippedSlate Blue is #5b1e71's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Real palettes that use #5b1e71
Tints & shades
Harmonies
Contrast
| #5b1e71 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 11.24:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 1.87:1 | fail | fail | fail |
Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #5b1e71 as the background.
Brands using this color
No public brand in the corpus uses this exact color yet. Extract a brand to add one.
Fonts for this mood
#5b1e71 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:
Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.
https://mcp.brandsweets.com/colors/mcpclaude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
›analyze #5b1e71 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/5b1e71-bc9fc1-b1cb62-2d1f2b-ebe9f1?lock=0&style=vibrantWant the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.
Machine-readable: color.md