Color

#4183af

#4183af
hex#4183af
rgbrgb(65, 131, 175)
hslhsl(204, 46%, 47%)
oklchoklch(0.586 0.095 240.3)
Closest name: steelblue (#4682b4)Relative luminance 0.2045

Colors that go with #4183af

Charcoal, Copper and Royal Blue 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 #4183af

Tints & shades

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

Harmonies

Complementary

Open in tool →

#af6d41

#41afa4 · #414caf

#af4183 · #83af41

Split-complementary

Open in tool →

#af414c · #afa441

#a441af · #af6d41 · #4caf41

Contrast

#4183af as textRatioAAAA largeAAAFix
Aaon white
4.13:1failpassfail
  • AA: use #3d7ba4 as the text (4.6:1)
  • AAA: use #2d5c7b as the text (7.17:1)
  • AA: or shift the background to #121212 (4.54:1)
Aaon black
5.09:1passpassfail
  • AAA: use #639ec5 as the text (7.23:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4183af as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

Fonts for this mood

#4183af reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4183af
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 #4183af and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4183af-9cafc4-df4e5a-1f222d-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