Color

#45406d

#45406d
hex#45406d
rgbrgb(69, 64, 109)
hslhsl(247, 26%, 34%)
oklchoklch(0.398 0.075 287.6)
Closest name: Bonne Nuit (#3a4866)Relative luminance 0.0604

Colors that go with #45406d

Steel Blue, Blue and Copper 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 →

#686d40

#40516d · #5c406d

#6d4540 · #406d45

Split-complementary

Open in tool →

#6d5c40 · #516d40

#6d4051 · #686d40 · #406d5c

Contrast

#45406d as textRatioAAAA largeAAAFix
Aaon white
9.51:1passpasspassPasses AAA — no fix needed.
Aaon black
2.21:1failfailfail
  • AA: use #756eaa as the text (4.57:1)
  • AAA: use #9792bf as the text (7.18:1)
  • AA: or shift the background to #b3b3b3 (4.54:1)
  • AAA: or shift the background to #dedede (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 #45406d 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 #45406d
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 #45406d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/45406d-a59cc4-dfaa4e-271f2d-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