Dusk
Open in tool →Slate blue with a copper accent — calm, professional, slightly editorial; suits consultancies and journals.
Color
#9899b3
#9899b3
hex
#9899b3rgb
rgb(152, 153, 179)hsl
hsl(238, 15%, 65%)oklch
oklch(0.691 0.038 283.6)Closest name: Machinery (#9999aa)Relative luminance 0.3271
Colors that go with #9899b3
Charcoal, Sand and Blush Pink 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 #9899b3: softer than #000 and cool enough to feel like part of the same palette.
Sand #c2b280
complementaryshippedSand sits directly opposite #9899b3 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Blush Pink #e8b4b8
shipped4 real palettes, including Estate and Garden Wedding put Blush Pink beside #9899b3, as the accent.
Copper #b87333
shippedDesigners have shipped Copper with #9899b3: 7 real palettes, including Dusk and Riverbed, as the accent.
Midnight Blue #191970
shipped8 real palettes, including Open House and First Snow put Midnight Blue beside #9899b3, as the text colour against it.
Peru #cd853f
split-complementshippedPeru is a split-complement of #9899b3: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Powder Blue #b0e0e6
shippedDesigners have shipped Powder Blue with #9899b3: 5 real palettes, including First Snow and Crypto.com's brand system, as the accent.
Royal Blue #4169e1
shippedRoyal Blue is paired with #9899b3 in 6 real palettes, including Sephora's brand system and Roblox's brand system, as the supporting colour.
Real palettes that use #9899b3
Tints & shades
Harmonies
Contrast
| #9899b3 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 2.78:1 | fail | fail | fail | |
Aaon black | 7.54:1 | pass | pass | pass | Passes AAA — no fix needed. |
Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #9899b3 as the background.
Brands using this color
No public brand in the corpus uses this exact color yet. Extract a brand to add one.
Palettes built around it
mcpConnect your agent — build around #9899b3
live endpointPoint 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.
endpoint
https://mcp.brandsweets.com/colors/mcpclaude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt
›analyze #9899b3 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
tool url
/palettes/new/9899b3-9f9cc4-df944e-251f2d-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