Color
#684398
#684398rgb(104, 67, 152)hsl(266, 39%, 43%)oklch(0.466 0.135 301.4)Colors that go with #684398
Charcoal, Crimson and Denim 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 #684398: softer than #000 and cool enough to feel like part of the same palette.
Crimson #dc143c
shippedCrimson is paired with #684398 in 6 real palettes, including Marvel's brand system and Netflix's brand system, as the accent.
Denim #1560bd
shippedDesigners have shipped Denim with #684398: 6 real palettes, including Slack's brand system and HP's brand system, as the lead colour.
Midnight Blue #191970
shipped8 real palettes, including Kraken's brand system and Marvel's brand system put Midnight Blue beside #684398, as the lead colour.
Royal Blue #4169e1
shippedRoyal Blue is paired with #684398 in 6 real palettes, including Wayfair's brand system and Fivetran blue's brand system, as the supporting colour.
Sea Green #2e8b57
split-complementshippedSea Green is a split-complement of #684398: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Taupe #483c32
shippedTaupe is paired with #684398 in 4 real palettes, including Superhuman's brand system and Datadog's brand system, as the lead colour.
Dark Olive Green #556b2f
complementaryDark Olive Green sits directly opposite #684398 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Real palettes that use #684398
Tints & shades
Harmonies
Contrast
| #684398 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 7.38:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 2.84:1 | 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 #684398 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
#684398 reads as cool, modern. 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 #684398 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/684398-b29cc4-dfd74e-2b1f2d-e9eaf1?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