Color

#408ec9

#408ec9
hex#408ec9
rgbrgb(64, 142, 201)
hslhsl(206, 56%, 52%)
oklchoklch(0.624 0.118 244.3)
Closest name: Blue Burst (#309cd0)Relative luminance 0.2465

Colors that go with #408ec9

Charcoal, Copper 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 →

#c97b40

#40c9c0 · #4049c9

#c9408e · #8ec940

Split-complementary

Open in tool →

#c94049 · #c9c040

#c040c9 · #c97b40 · #49c940

Contrast

#408ec9 as textRatioAAAA largeAAAFix
Aaon white
3.54:1failpassfail
  • AA: use #327bb3 as the text (4.55:1)
  • AAA: use #265d87 as the text (7:1)
  • AA: or shift the background to #212121 (4.55:1)
Aaon black
5.93:1passpassfail
  • AAA: use #589cd0 as the text (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #408ec9 as the background.

Brands using this color

Fonts for this mood

#408ec9 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #408ec9
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 #408ec9 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/408ec9-9caec4-df4e56-1f212d-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