Color

#418bc3

#418bc3
hex#418bc3
rgbrgb(65, 139, 195)
hslhsl(206, 52%, 51%)
oklchoklch(0.615 0.113 244.1)
Closest name: steelblue (#4682b4)Relative luminance 0.2353

Colors that go with #418bc3

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 →

#c37941

#41c3ba · #414ac3

#c3418b · #8bc341

Split-complementary

Open in tool →

#c3414a · #c3ba41

#ba41c3 · #c37941 · #4ac341

Contrast

#418bc3 as textRatioAAAA largeAAAFix
Aaon white
3.68:1failpassfail
  • AA: use #377bae as the text (4.56:1)
  • AAA: use #2a5d84 as the text (7.01:1)
  • AA: or shift the background to #1c1c1c (4.63:1)
Aaon black
5.71:1passpassfail
  • AAA: use #5c9bcc as the text (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #418bc3 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

#418bc3 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #418bc3
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 #418bc3 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/418bc3-9caec4-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