Color

#554ac9

#554ac9
hex#554ac9
rgbrgb(85, 74, 201)
hslhsl(245, 54%, 54%)
oklchoklch(0.497 0.19 280.9)
Closest name: Blurple (#5539cc)Relative luminance 0.1105

Colors that go with #554ac9

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 →

#bec94a

#4a7fc9 · #944ac9

#c9554a · #4ac955

Split-complementary

Open in tool →

#c9944a · #7fc94a

#c94a7f · #bec94a · #4ac994

Contrast

#554ac9 as textRatioAAAA largeAAAFix
Aaon white
6.54:1passpassfail
  • AAA: use #4e43c7 as the text (7.12:1)
Aaon black
3.21:1failpassfail
  • AA: use #726ad2 as the text (4.71:1)
  • AAA: use #948ddd as the text (7.11:1)
  • AA: or shift the background to #d6d6d6 (4.5:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #554ac9 as the background.

Brands using this color

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

Fonts for this mood

#554ac9 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #554ac9
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 #554ac9 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/554ac9-a49cc4-dfa54e-261f2d-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