Color
#550561
#550561rgb(85, 5, 97)hsl(292, 90%, 20%)oklch(0.328 0.15 321.6)Colors that go with #550561
Tomato, Forest Green and Charcoal 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.
Tomato #ff6347
shipped4 real palettes, including FedEx's brand system and Golden Hour put Tomato beside #550561, as the supporting colour.
Forest Green #228b22
complementaryForest Green sits directly opposite #550561 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 #550561: softer than #000 and cool enough to feel like part of the same palette.
Denim #1560bd
shippedDesigners have shipped Denim with #550561: 3 real palettes, including Hinge's brand system and Slack's brand system, as the accent.
Olive Green #808000
split-complementOlive Green is a split-complement of #550561: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Teal #008080
split-complementTeal is a split-complement of #550561: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Blue Violet #8a2be2
analogousshippedBlue Violet is #550561's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
White Smoke #f5f5f5
neutralWhite Smoke is the surface for #550561: a clean near-white with no warm cast, so the cool hue stays clear instead of drifting muddy.
Real palettes that use #550561
Tints & shades
Harmonies
Contrast
| #550561 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 13.29:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 1.58:1 | 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 #550561 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
#550561 reads as cool, vivid, dark. 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 #550561 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/550561-c09fc1-a3cb62-2d1f29-ece9f1?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