Color

#3166af

#3166af
hex#3166af
rgbrgb(49, 102, 175)
hslhsl(215, 56%, 44%)
oklchoklch(0.512 0.129 257.1)
Closest name: Denim (#1560bd)Relative luminance 0.1325

Colors that go with #3166af

Charcoal, Sea Green and Sienna 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 →

#af7b31

#31a5af · #3c31af

#af3166 · #66af31

Split-complementary

Open in tool →

#af3c31 · #a5af31

#af31a5 · #af7b31 · #31af3c

Contrast

#3166af as textRatioAAAA largeAAAFix
Aaon white
5.75:1passpassfail
  • AAA: use #2b5897 as the text (7.13:1)
Aaon black
3.65:1failpassfail
  • AA: use #3c76c8 as the text (4.62:1)
  • AAA: use #6c98d5 as the text (7.09:1)
  • AA: or shift the background to #e6e6e6 (4.61:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3166af as the background.

Brands using this color

Fonts for this mood

#3166af reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3166af
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 #3166af and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3166af-9ca8c4-df5d4e-201f2d-e9f0f1?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