Color
#644d66
#644d66rgb(100, 77, 102)hsl(295, 14%, 35%)oklch(0.453 0.049 323.7)Colors that go with #644d66
Teal, Sea Green and Copper 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
split-complementshippedTeal is a split-complement of #644d66: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Sea Green #2e8b57
complementaryshippedSea Green sits directly opposite #644d66 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Copper #b87333
shippedDesigners have shipped Copper with #644d66: 5 real palettes, including Dusk and Desert Road, as the accent.
Denim #1560bd
shippedDesigners have shipped Denim with #644d66: 6 real palettes, including HP's brand system and Hinge's brand system, as the accent.
Goldenrod #daa520
shippedGoldenrod shows up next to #644d66 in 4 real palettes, including Open House and Fireside, as the accent.
Medium Sea Green #3cb371
shippedMedium Sea Green is paired with #644d66 in 4 real palettes, including Console Light and Undergrowth, as the accent.
Midnight Blue #191970
shipped6 real palettes, including Lufthansa's brand system and First Snow put Midnight Blue beside #644d66, as the lead colour.
White Smoke #f5f5f5
neutralWhite Smoke is the surface for #644d66: a clean near-white with no warm cast, so the cool hue stays clear instead of drifting muddy.
Real palettes that use #644d66
Tints & shades
Harmonies
Contrast
| #644d66 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 7.51:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 2.8:1 | 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 #644d66 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 #644d66 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/644d66-c19fbf-9dcb62-2d1f28-ede9f1?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