Color

#316eaa

#316eaa
hex#316eaa
rgbrgb(49, 110, 170)
hslhsl(210, 55%, 43%)
oklchoklch(0.527 0.114 250.6)
Closest name: Campanula (#3473b7)Relative luminance 0.1471

Colors that go with #316eaa

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 →

#aa6e31

#31aaaa · #3131aa

#aa316e · #6eaa31

Split-complementary

Open in tool →

#aa3131 · #aaaa31

#aa31aa · #aa6e31 · #31aa31

Contrast

#316eaa as textRatioAAAA largeAAAFix
Aaon white
5.33:1passpassfail
  • AAA: use #28598a as the text (7.28:1)
Aaon black
3.94:1failpassfail
  • AA: use #3678ba as the text (4.55:1)
  • AAA: use #659cd2 as the text (7.24:1)
  • AA: or shift the background to #ededed (4.55:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #316eaa as the background.

Brands using this color

Fonts for this mood

#316eaa reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #316eaa
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 #316eaa and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/316eaa-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