Color

#418fd8

#418fd8
hex#418fd8
rgbrgb(65, 143, 216)
hslhsl(209, 66%, 55%)
oklchoklch(0.635 0.134 249.5)
Closest name: Blue Jay (#5588dd)Relative luminance 0.2573

Colors that go with #418fd8

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 →

#d88a41

#41d8d5 · #4143d8

#d8418f · #8fd841

Split-complementary

Open in tool →

#d84143 · #d8d541

#d541d8 · #d88a41 · #43d841

Contrast

#418fd8 as textRatioAAAA largeAAAFix
Aaon white
3.42:1failpassfail
  • AA: use #2878c3 as the text (4.6:1)
  • AAA: use #1e5b94 as the text (7.05:1)
  • AA: or shift the background to #242424 (4.54:1)
Aaon black
6.15:1passpassfail
  • AAA: use #569bdc as the text (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #418fd8 as the background.

Brands using this color

Fonts for this mood

#418fd8 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #418fd8
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 #418fd8 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/418fd8-9cacc4-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