Color

#3170af

#3170af
hex#3170af
rgbrgb(49, 112, 175)
hslhsl(210, 56%, 44%)
oklchoklch(0.535 0.118 251)
Closest name: Campanula (#3473b7)Relative luminance 0.1534

Colors that go with #3170af

Charcoal, Crimson and Sea Green 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 →

#af7031

#31afaf · #3131af

#af3170 · #70af31

Split-complementary

Open in tool →

#af3131 · #afaf31

#af31af · #af7031 · #31af31

Contrast

#3170af as textRatioAAAA largeAAAFix
Aaon white
5.16:1passpassfail
  • AAA: use #27598b as the text (7.27:1)
Aaon black
4.07:1failpassfail
  • AA: use #3578bb as the text (4.56:1)
  • AAA: use #649cd3 as the text (7.24:1)
  • AA: or shift the background to #f0f0f0 (4.53:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3170af as the background.

Brands using this color

Fonts for this mood

#3170af reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3170af
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 #3170af and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3170af-9cabc4-df514e-1f202d-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