Color

#5a55aa

#5a55aa
hex#5a55aa
rgbrgb(90, 85, 170)
hslhsl(244, 33%, 50%)
oklchoklch(0.497 0.132 283.2)
Closest name: Passion Flower (#6f5698)Relative luminance 0.1157

Colors that go with #5a55aa

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 →

#a4aa55

#557aaa · #8555aa

#aa5b55 · #55aa5b

Split-complementary

Open in tool →

#aa8555 · #7aaa55

#aa557a · #a4aa55 · #55aa85

Contrast

#5a55aa as textRatioAAAA largeAAAFix
Aaon white
6.34:1passpassfail
  • AAA: use #544f9c as the text (7.06:1)
Aaon black
3.31:1failpassfail
  • AA: use #726db6 as the text (4.58:1)
  • AAA: use #9692c8 as the text (7.24:1)
  • AA: or shift the background to #dbdbdb (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 #5a55aa 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 #5a55aa
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 #5a55aa and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5a55aa-a39cc4-dfa24e-261f2d-e9edf1?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