Color

#4191b4

#4191b4
hex#4191b4
rgbrgb(65, 145, 180)
hslhsl(198, 47%, 48%)
oklchoklch(0.621 0.094 229.7)
Closest name: Blue Moon (#3992a8)Relative luminance 0.2467

Colors that go with #4191b4

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.

Real palettes that use #4191b4

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#b46341

#41b49d · #4158b4

#b44191 · #91b441

Split-complementary

Open in tool →

#b44158 · #b49d41

#9d41b4 · #b46341 · #58b441

Contrast

#4191b4 as textRatioAAAA largeAAAFix
Aaon white
3.54:1failpassfail
  • AA: use #377c9a as the text (4.65:1)
  • AAA: use #2a5e74 as the text (7.11:1)
  • AA: or shift the background to #212121 (4.55:1)
Aaon black
5.93:1passpassfail
  • AAA: use #53a0c1 as the text (7.17:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4191b4 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

#4191b4 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4191b4
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 #4191b4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4191b4-9cb3c4-df4e69-1f232d-e9f1f0?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