Color

#675aaa

#675aaa
hex#675aaa
rgbrgb(103, 90, 170)
hslhsl(250, 32%, 51%)
oklchoklch(0.518 0.123 288.8)
Closest name: Passion Flower (#6f5698)Relative luminance 0.131

Colors that go with #675aaa

Dark Olive Green, Sea Green and Cadet Blue 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 #675aaa

Tints & shades

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

Harmonies

Complementary

Open in tool →

#9daa5a

#5a75aa · #8f5aaa

#aa675a · #5aaa67

Split-complementary

Open in tool →

#aa8f5a · #75aa5a

#aa5a75 · #9daa5a · #5aaa8f

Contrast

#675aaa as textRatioAAAA largeAAAFix
Aaon white
5.8:1passpassfail
  • AAA: use #5a4e97 as the text (7.07:1)
Aaon black
3.62:1failpassfail
  • AA: use #776bb3 as the text (4.54:1)
  • AAA: use #9990c6 as the text (7.16:1)
  • AA: or shift the background to #e3e3e3 (4.52:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #675aaa 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 #675aaa
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 #675aaa and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/675aaa-a79cc4-dfb14e-281f2d-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