Color

#3e456f

#3e456f
hex#3e456f
rgbrgb(62, 69, 111)
hslhsl(231, 28%, 34%)
oklchoklch(0.404 0.071 275.5)
Closest name: Bonne Nuit (#3a4866)Relative luminance 0.0643

Colors that go with #3e456f

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 →

#6f683e

#3e5e6f · #4f3e6f

#6f3e46 · #466f3e

Split-complementary

Open in tool →

#6f4f3e · #5e6f3e

#6f3e5e · #6f683e · #3e6f4f

Contrast

#3e456f as textRatioAAAA largeAAAFix
Aaon white
9.19:1passpasspassPasses AAA — no fix needed.
Aaon black
2.29:1failfailfail
  • AA: use #6973ab as the text (4.64:1)
  • AAA: use #8d94bf as the text (7.12:1)
  • AA: or shift the background to #b8b8b8 (4.63:1)
  • AAA: or shift the background to #e3e3e3 (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3e456f 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 #3e456f
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 #3e456f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3e456f-9c9ec4-df834e-231f2d-e9eef1?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