Color
#663859
#663859rgb(102, 56, 89)hsl(317, 29%, 31%)oklch(0.41 0.08 338.4)Colors that go with #663859
Teal, 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.
Teal #008080
complementaryshippedTeal sits directly opposite #663859 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Crimson #dc143c
shippedCrimson is paired with #663859 in 4 real palettes, including Lenovo's brand system and Codecademy's brand system, as the supporting colour.
Denim #1560bd
shippedDesigners have shipped Denim with #663859: 4 real palettes, including Hinge's brand system and HP's brand system, as the accent.
Midnight Blue #191970
shipped4 real palettes, including Microsoft's brand system and First Snow put Midnight Blue beside #663859, as the accent.
Powder Blue #b0e0e6
shippedDesigners have shipped Powder Blue with #663859: 4 real palettes, including Nursery and Stone, as the supporting colour.
Royal Blue #4169e1
shippedRoyal Blue is paired with #663859 in 6 real palettes, including Console Light and Zoom's brand system, as the lead colour.
Dark Olive Green #556b2f
split-complementshippedDark Olive Green is a split-complement of #663859: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Cream #fffdd0
neutralCream is the surface #663859 wants: a warm off-white that shares its undertone, so #663859 reads softer on it than on pure white.
Real palettes that use #663859
Tints & shades
Harmonies
Contrast
| #663859 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 9.23:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 2.27:1 | 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 #663859 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
#663859 reads as warm, muted, editorial. 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 #663859 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/663859-c19fb3-77cb62-2d1f23-efe9f1?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