Color

#4f4389

#4f4389
hex#4f4389
rgbrgb(79, 67, 137)
hslhsl(250, 34%, 40%)
oklchoklch(0.431 0.112 288.7)
Closest name: darkslateblue (#483d8b)Relative luminance 0.0748

Colors that go with #4f4389

Charcoal, Steel Blue and 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 →

#7d8943

#435a89 · #724389

#894f43 · #43894f

Split-complementary

Open in tool →

#897243 · #5a8943

#89435a · #7d8943 · #438972

Contrast

#4f4389 as textRatioAAAA largeAAAFix
Aaon white
8.41:1passpasspassPasses AAA — no fix needed.
Aaon black
2.5:1failfailfail
  • AA: use #786cb7 as the text (4.63:1)
  • AAA: use #988ec7 as the text (7.03:1)
  • AA: or shift the background to #bfbfbf (4.57:1)
  • AAA: or shift the background to #ebebeb (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4f4389 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 #4f4389
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 #4f4389 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4f4389-a79cc4-dfb14e-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