Color

#554aa5

#554aa5
hex#554aa5
rgbrgb(85, 74, 165)
hslhsl(247, 38%, 47%)
oklchoklch(0.469 0.141 285.1)
Closest name: Blueberry (#464196)Relative luminance 0.0955

Colors that go with #554aa5

Charcoal, Sea Green and Steel 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#9ba54a

#4a6da5 · #824aa5

#a5554a · #4aa555

Split-complementary

Open in tool →

#a5824a · #6da54a

#a54a6d · #9ba54a · #4aa582

Contrast

#554aa5 as textRatioAAAA largeAAAFix
Aaon white
7.22:1passpasspassPasses AAA — no fix needed.
Aaon black
2.91:1failfailfail
  • AA: use #756bbd as the text (4.59:1)
  • AAA: use #968ecc as the text (7.04:1)
  • AA: or shift the background to #cfcfcf (4.63:1)
  • AAA: or shift the background to #fcfcfc (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #554aa5 as the background.

Brands using this color

Fonts for this mood

#554aa5 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #554aa5
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 #554aa5 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/554aa5-a59cc4-dfaa4e-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