Color
#818099
#818099rgb(129, 128, 153)hsl(242, 11%, 55%)oklch(0.609 0.038 287.1)Colors that go with #818099
Charcoal, Copper and Champagne 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 #818099: softer than #000 and cool enough to feel like part of the same palette.
Copper #b87333
split-complementshippedCopper is a split-complement of #818099: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Champagne #f7e7ce
shipped4 real palettes, including Midnight Luxe and Coffee Bar put Champagne beside #818099, as that palette's text colour.
Crimson #dc143c
shippedCrimson is paired with #818099 in 5 real palettes, including Retro Pop and Marvel's brand system, as the lead colour.
Denim #1560bd
shippedDesigners have shipped Denim with #818099: 6 real palettes, including Campus and Dusk, as the lead colour.
Midnight Blue #191970
shipped8 real palettes, including Plaid's brand system and Open House put Midnight Blue beside #818099, as the supporting colour.
Peru #cd853f
shipped5 real palettes, including Estate and Kiln put Peru beside #818099, as the lead colour.
Taupe #483c32
shippedTaupe is paired with #818099 in 19 real palettes, including Typewriter and Still Water, as the lead colour.
Tints & shades
Harmonies
Contrast
| #818099 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 3.83:1 | fail | pass | fail | |
Aaon black | 5.48:1 | pass | pass | fail |
|
Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #818099 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 #818099 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/818099-a29cc4-df9e4e-261f2d-e9edf1?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