Color

#318da0

#318da0
hex#318da0
rgbrgb(49, 141, 160)
hslhsl(190, 53%, 41%)
oklchoklch(0.598 0.089 214.2)
Closest name: Blue Moon (#3992a8)Relative luminance 0.2224

Colors that go with #318da0

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.

Real palettes that use #318da0

Tints & shades

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

Harmonies

Complementary

Open in tool →

#a04431

#31a07b · #3156a0

#a0318d · #8da031

Split-complementary

Open in tool →

#a03156 · #a07b31

#7b31a0 · #a04431 · #56a031

Contrast

#318da0 as textRatioAAAA largeAAAFix
Aaon white
3.85:1failpassfail
  • AA: use #2c8090 as the text (4.57:1)
  • AAA: use #22616d as the text (7:1)
  • AA: or shift the background to #1a1a1a (4.52:1)
Aaon black
5.45:1passpassfail
  • AAA: use #38a2b7 as the text (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #318da0 as the background.

Brands using this color

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

Fonts for this mood

#318da0 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #318da0
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 #318da0 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/318da0-a2b6be-df4e7c-1f252d-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