Color
#613b78
#613b78rgb(97, 59, 120)hsl(277, 34%, 35%)oklch(0.425 0.106 311.4)Colors that go with #613b78
Charcoal, Denim and Royal Blue 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.
Charcoal #36454f
neutralshippedCharcoal is the text near-black for #613b78: softer than #000 and cool enough to feel like part of the same palette.
Denim #1560bd
shippedDenim is paired with #613b78 in 5 real palettes, including Hinge's brand system and HP's brand system, as the accent — a combination designers have actually shipped, not a computed rotation.
Royal Blue #4169e1
shippedRoyal Blue is paired with #613b78 in 5 real palettes, including Console Light and Wayfair's brand system, as the lead colour — a combination designers have actually shipped, not a computed rotation.
Taupe #483c32
shippedTaupe is paired with #613b78 in 5 real palettes, including Datadog's brand system and Dusk, as the text colour against it — a combination designers have actually shipped, not a computed rotation.
Dark Olive Green #556b2f
complementaryDark Olive Green sits directly opposite #613b78 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Teal #008080
split-complementshippedTeal is a split-complement of #613b78: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Crimson #dc143c
shippedCrimson is paired with #613b78 in 3 real palettes, including Lenovo's brand system and Codecademy's brand system, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Midnight Blue #191970
shippedMidnight Blue is paired with #613b78 in 3 real palettes, including First Snow and Microsoft's brand system, as the text colour against it — a combination designers have actually shipped, not a computed rotation.
Real palettes that use #613b78
Tints & shades
Harmonies
Contrast
| #613b78 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 8.73:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 2.41:1 | 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 #613b78 as the background.
Brands using this color
No public brand in the corpus uses this exact color yet. Extract a brand to add one.
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 #613b78 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/613b78-b99cc4-bdcb62-2d1f2c-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