Color

#434181

#434181
hex#434181
rgbrgb(67, 65, 129)
hslhsl(242, 33%, 38%)
oklchoklch(0.411 0.105 282.2)
Closest name: darkslateblue (#483d8b)Relative luminance 0.0656

Colors that go with #434181

Steel Blue, Blue and Cornflower 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 →

#7f8141

#415f81 · #634181

#814341 · #418143

Split-complementary

Open in tool →

#816341 · #5f8141

#81415f · #7f8141 · #418163

Contrast

#434181 as textRatioAAAA largeAAAFix
Aaon white
9.08:1passpasspassPasses AAA — no fix needed.
Aaon black
2.31:1failfailfail
  • AA: use #706db6 as the text (4.55:1)
  • AAA: use #9492c8 as the text (7.2:1)
  • AA: or shift the background to #b8b8b8 (4.58:1)
  • AAA: or shift the background to #e3e3e3 (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #434181 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 #434181
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 #434181 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/434181-a29cc4-df9e4e-261f2d-e9edf1?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