Color

#552bd4

#552bd4
hex#552bd4
rgbrgb(85, 43, 212)
hslhsl(255, 66%, 50%)
oklchoklch(0.465 0.235 283.9)
Closest name: Blurple (#5539cc)Relative luminance 0.0841

Colors that go with #552bd4

Charcoal, Sea Green and Cobalt 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 →

#aad42b

#2b55d4 · #aa2bd4

#d4552b · #2bd455

Split-complementary

Open in tool →

#d4aa2b · #55d42b

#d42b55 · #aad42b · #2bd4aa

Contrast

#552bd4 as textRatioAAAA largeAAAFix
Aaon white
7.83:1passpasspassPasses AAA — no fix needed.
Aaon black
2.68:1failfailfail
  • AA: use #7e5ede as the text (4.54:1)
  • AAA: use #a088e7 as the text (7.17:1)
  • AA: or shift the background to #c7c7c7 (4.63:1)
  • AAA: or shift the background to #f5f5f5 (7.18:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #552bd4 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

#552bd4 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #552bd4
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 #552bd4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/552bd4-ab9cc4-dfbd4e-291f2d-e9ebf1?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