Color
#581c8d
#581c8drgb(88, 28, 141)hsl(272, 67%, 33%)oklch(0.386 0.172 302.9)Colors that go with #581c8d
Olive Green, Teal and Sea 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.
Olive Green #808000
complementaryOlive Green sits directly opposite #581c8d on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Teal #008080
triadicshippedTeal completes a triad with #581c8d — 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 #581c8d: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Midnight Blue #191970
shippedMidnight Blue is paired with #581c8d in two real palettes: Fintech Trust and Blue Mono, as the text colour against it — a combination designers have actually shipped, not a computed rotation.
Sandy Brown #f4a460
shippedSandy Brown is paired with #581c8d in two real palettes: Dusk Gradient and Golden Hour, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
White Smoke #f5f5f5
neutralWhite Smoke is the surface for #581c8d: a clean near-white with no warm cast, so the cool hue stays clear instead of drifting muddy.
Sienna #a0522d
triadicSienna completes a triad with #581c8d — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Royal Blue #4169e1
analogousRoyal Blue is #581c8d'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 #581c8d
Tints & shades
Harmonies
Contrast
| #581c8d as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 10.68:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 1.97:1 | 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 #581c8d 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
#581c8d reads as cool, vivid, technical. 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 #581c8d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/581c8d-b69cc4-c5cb62-2d1f2d-eae9f1?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