Color

#4c407d

#4c407d
hex#4c407d
rgbrgb(76, 64, 125)
hslhsl(252, 32%, 37%)
oklchoklch(0.414 0.099 290.4)
Closest name: darkslateblue (#483d8b)Relative luminance 0.0668

Colors that go with #4c407d

Steel Blue, Blue and Crimson 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 →

#707d40

#40527d · #6a407d

#7d4c40 · #407d4c

Split-complementary

Open in tool →

#7d6a40 · #527d40

#7d4052 · #707d40 · #407d6a

Contrast

#4c407d as textRatioAAAA largeAAAFix
Aaon white
8.99:1passpasspassPasses AAA — no fix needed.
Aaon black
2.34:1failfailfail
  • AA: use #796bb3 as the text (4.57:1)
  • AAA: use #9b90c6 as the text (7.2:1)
  • AA: or shift the background to #b8b8b8 (4.53:1)
  • AAA: or shift the background to #e3e3e3 (7:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4c407d 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 #4c407d
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 #4c407d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4c407d-a99cc4-dfb64e-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