Color

#406a91

#406a91
hex#406a91
rgbrgb(64, 106, 145)
hslhsl(209, 39%, 41%)
oklchoklch(0.511 0.078 247.9)
Closest name: Astral (#376f89)Relative luminance 0.1344

Colors that go with #406a91

Charcoal, Sienna and Amber 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 →

#916740

#409190 · #404191

#91406a · #6a9140

Split-complementary

Open in tool →

#914041 · #919040

#904091 · #916740 · #419140

Contrast

#406a91 as textRatioAAAA largeAAAFix
Aaon white
5.69:1passpassfail
  • AAA: use #365a7c as the text (7.22:1)
Aaon black
3.69:1failpassfail
  • AA: use #4979a7 as the text (4.58:1)
  • AAA: use #719ac1 as the text (7.09:1)
  • AA: or shift the background to #e6e6e6 (4.56:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #406a91 as the background.

Brands using this color

Fonts for this mood

#406a91 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #406a91
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 #406a91 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/406a91-9cacc4-df4e4e-1f212d-e9f1f1?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