Color
#673a98
#673a98rgb(103, 58, 152)hsl(269, 45%, 41%)oklch(0.451 0.149 302.9)Colors that go with #673a98
Charcoal, Royal Blue and Crimson 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 #673a98: softer than #000 and cool enough to feel like part of the same palette.
Royal Blue #4169e1
analogousshippedRoyal Blue is #673a98's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Crimson #dc143c
shippedCrimson is paired with #673a98 in 4 real palettes, including Gemstone and Lenovo's brand system, as the accent.
Midnight Blue #191970
shipped4 real palettes, including Kraken's brand system and First Snow put Midnight Blue beside #673a98, as the lead colour.
Sea Green #2e8b57
split-complementshippedSea Green is a split-complement of #673a98: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Taupe #483c32
shippedTaupe is paired with #673a98 in 4 real palettes, including Datadog's brand system and Superhuman's brand system, as that palette's text colour.
Tomato #ff6347
shipped4 real palettes, including GitLab's brand system and Fivetran blue's brand system put Tomato beside #673a98, as the lead colour.
Dark Olive Green #556b2f
complementaryDark Olive Green sits directly opposite #673a98 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 #673a98
Tints & shades
Harmonies
Contrast
| #673a98 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 7.97:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 2.64:1 | 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 #673a98 as the background.
Brands using this color
Fonts for this mood
#673a98 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 #673a98 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/673a98-b49cc4-cbcb62-2c1f2d-e9e9f1?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