Color

#434584

#434584
hex#434584
rgbrgb(67, 69, 132)
hslhsl(238, 33%, 39%)
oklchoklch(0.421 0.103 279.6)
Closest name: darkslateblue (#483d8b)Relative luminance 0.0712

Colors that go with #434584

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 →

#848243

#436684 · #614384

#844345 · #458443

Split-complementary

Open in tool →

#846143 · #668443

#844366 · #848243 · #438461

Contrast

#434584 as textRatioAAAA largeAAAFix
Aaon white
8.67:1passpasspassPasses AAA — no fix needed.
Aaon black
2.42:1failfailfail
  • AA: use #6d70b6 as the text (4.64:1)
  • AAA: use #8f91c7 as the text (7.04:1)
  • AA: or shift the background to #bdbdbd (4.61:1)
  • AAA: or shift the background to #e8e8e8 (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #434584 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 #434584
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 #434584 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/434584-9f9cc4-df944e-251f2d-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