Color

#318eaa

#318eaa
hex#318eaa
rgbrgb(49, 142, 170)
hslhsl(194, 55%, 43%)
oklchoklch(0.605 0.095 221.9)
Closest name: Blue Moon (#3992a8)Relative luminance 0.229

Colors that go with #318eaa

Charcoal, Copper and Crimson 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 →

#aa4d31

#31aa8a · #3152aa

#aa318e · #8eaa31

Split-complementary

Open in tool →

#aa3152 · #aa8a31

#8a31aa · #aa4d31 · #52aa31

Contrast

#318eaa as textRatioAAAA largeAAAFix
Aaon white
3.76:1failpassfail
  • AA: use #2c7d96 as the text (4.69:1)
  • AAA: use #216073 as the text (7.03:1)
  • AA: or shift the background to #1c1c1c (4.53:1)
Aaon black
5.58:1passpassfail
  • AAA: use #38a2c2 as the text (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #318eaa 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

#318eaa reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #318eaa
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 #318eaa and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/318eaa-9cb6c4-df4e72-1f242d-e9f1ef?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