Color

#408fd4

#408fd4
hex#408fd4
rgbrgb(64, 143, 212)
hslhsl(208, 63%, 54%)
oklchoklch(0.632 0.13 247.9)
Closest name: Blue Jay (#5588dd)Relative luminance 0.2549

Colors that go with #408fd4

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 →

#d48540

#40d4cf · #4045d4

#d4408f · #8fd440

Split-complementary

Open in tool →

#d44045 · #d4cf40

#cf40d4 · #d48540 · #45d440

Contrast

#408fd4 as textRatioAAAA largeAAAFix
Aaon white
3.44:1failpassfail
  • AA: use #2b7abf as the text (4.53:1)
  • AAA: use #205a8d as the text (7.22:1)
  • AA: or shift the background to #242424 (4.51:1)
Aaon black
6.1:1passpassfail
  • AAA: use #559bd8 as the text (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #408fd4 as the background.

Brands using this color

Fonts for this mood

#408fd4 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #408fd4
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 #408fd4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/408fd4-9cadc4-df4e51-1f212d-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