Color

#406ec9

#406ec9
hex#406ec9
rgbrgb(64, 110, 201)
hslhsl(220, 56%, 52%)
oklchoklch(0.553 0.15 262.4)
Closest name: God of Rain (#4466cc)Relative luminance 0.1646

Colors that go with #406ec9

Charcoal, Sea Green 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 →

#c99b40

#40b2c9 · #5740c9

#c9406e · #6ec940

Split-complementary

Open in tool →

#c95740 · #b2c940

#c940b2 · #c99b40 · #40c957

Contrast

#406ec9 as textRatioAAAA largeAAAFix
Aaon white
4.89:1passpassfail
  • AAA: use #2e55a3 as the text (7.13:1)
Aaon black
4.29:1failpassfail
  • AA: use #4874cb as the text (4.64:1)
  • AAA: use #7495d8 as the text (7.03:1)
  • AA: or shift the background to #f7f7f7 (4.57:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #406ec9 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#406ec9 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #406ec9
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 #406ec9 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/406ec9-9ca5c4-df694e-211f2d-e9f0f1?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