Color

#41405e

#41405e
hex#41405e
rgbrgb(65, 64, 94)
hslhsl(242, 19%, 31%)
oklchoklch(0.386 0.051 285.3)
Closest name: Bonne Nuit (#3a4866)Relative luminance 0.056

Colors that go with #41405e

Sea Green, Steel Blue and Teal 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 →

#5d5e40

#404e5e · #50405e

#5e4140 · #405e41

Split-complementary

Open in tool →

#5e5040 · #4e5e40

#5e404e · #5d5e40 · #405e50

Contrast

#41405e as textRatioAAAA largeAAAFix
Aaon white
9.91:1passpasspassPasses AAA — no fix needed.
Aaon black
2.12:1failfailfail
  • AA: use #72709e as the text (4.53:1)
  • AAA: use #9392b5 as the text (7.02:1)
  • AA: or shift the background to #b0b0b0 (4.57:1)
  • AAA: or shift the background to #d9d9d9 (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #41405e 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 #41405e
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 #41405e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/41405e-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