Color

#4191b9

#4191b9
hex#4191b9
rgbrgb(65, 145, 185)
hslhsl(200, 48%, 49%)
oklchoklch(0.624 0.098 233.2)
Closest name: Blue Moon (#3992a8)Relative luminance 0.2488

Colors that go with #4191b9

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 →

#b96941

#41b9a5 · #4155b9

#b94191 · #91b941

Split-complementary

Open in tool →

#b94155 · #b9a541

#a541b9 · #b96941 · #55b941

Contrast

#4191b9 as textRatioAAAA largeAAAFix
Aaon white
3.51:1failpassfail
  • AA: use #387c9f as the text (4.61:1)
  • AAA: use #295c75 as the text (7.29:1)
  • AA: or shift the background to #212121 (4.58:1)
Aaon black
5.98:1passpassfail
  • AAA: use #559fc3 as the text (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4191b9 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

#4191b9 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4191b9
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 #4191b9 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4191b9-9cb2c4-df4e64-1f232d-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