Color

#3699ba

#3699ba
hex#3699ba
rgbrgb(54, 153, 186)
hslhsl(195, 55%, 47%)
oklchoklch(0.64 0.102 224.2)
Closest name: Blue Ocean (#009dc4)Relative luminance 0.2711

Colors that go with #3699ba

Charcoal, Crimson and Amber 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 #3699ba

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ba5736

#36ba99 · #3657ba

#ba3699 · #99ba36

Split-complementary

Open in tool →

#ba3657 · #ba9936

#9936ba · #ba5736 · #57ba36

Contrast

#3699ba as textRatioAAAA largeAAAFix
Aaon white
3.27:1failpassfail
  • AA: use #2d7f9a as the text (4.55:1)
  • AAA: use #215e73 as the text (7.21:1)
  • AA: or shift the background to #262626 (4.63:1)
Aaon black
6.42:1passpassfail
  • AAA: use #39a3c6 as the text (7.23:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3699ba 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

#3699ba reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3699ba
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 #3699ba and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3699ba-9cb5c4-df4e70-1f242d-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