Color

#665e7d

#665e7d
hex#665e7d
rgbrgb(102, 94, 125)
hslhsl(255, 14%, 43%)
oklchoklch(0.501 0.05 296.4)
Closest name: Plummy (#675a75)Relative luminance 0.1231

Colors that go with #665e7d

Charcoal, Sea Green 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.

Real palettes that use #665e7d

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#757d5e

#5e667d · #755e7d

#7d665e · #5e7d66

Split-complementary

Open in tool →

#7d755e · #667d5e

#7d5e66 · #757d5e · #5e7d75

Contrast

#665e7d as textRatioAAAA largeAAAFix
Aaon white
6.07:1passpassfail
  • AAA: use #5a536e as the text (7.25:1)
Aaon black
3.46:1failpassfail
  • AA: use #797194 as the text (4.6:1)
  • AAA: use #9a93ae as the text (7.16:1)
  • AA: or shift the background to #dedede (4.51:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #665e7d as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

mcpConnect your agent — build around #665e7d
live endpoint

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.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #665e7d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/665e7d-ab9cc4-dfbd4e-291f2d-e9ebf1?lock=0&style=vibrant

Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.

Machine-readable: color.md