Color

#665bae

#665bae
hex#665bae
rgbrgb(102, 91, 174)
hslhsl(248, 34%, 52%)
oklchoklch(0.521 0.127 287.2)
Closest name: Bellflower (#5d66aa)Relative luminance 0.1336

Colors that go with #665bae

Charcoal, Sea Green and Amber 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#a3ae5b

#5b7aae · #905bae

#ae665b · #5bae66

Split-complementary

Open in tool →

#ae905b · #7aae5b

#ae5b7a · #a3ae5b · #5bae90

Contrast

#665bae as textRatioAAAA largeAAAFix
Aaon white
5.72:1passpassfail
  • AAA: use #584d9d as the text (7.09:1)
Aaon black
3.67:1failpassfail
  • AA: use #766cb7 as the text (4.6:1)
  • AAA: use #9992c9 as the text (7.31:1)
  • AA: or shift the background to #e6e6e6 (4.58:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #665bae 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 #665bae
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 #665bae and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/665bae-a69cc4-dfac4e-271f2d-e9ecf1?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