Color

#3697ab

#3697ab
hex#3697ab
rgbrgb(54, 151, 171)
hslhsl(190, 52%, 44%)
oklchoklch(0.629 0.093 214.1)
Closest name: Blue Moon (#3992a8)Relative luminance 0.2586

Colors that go with #3697ab

Charcoal, Copper and Orange Red 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 →

#ab4936

#36ab84 · #365dab

#ab3697 · #97ab36

Split-complementary

Open in tool →

#ab365d · #ab8436

#8436ab · #ab4936 · #5dab36

Contrast

#3697ab as textRatioAAAA largeAAAFix
Aaon white
3.4:1failpassfail
  • AA: use #2d7f8f as the text (4.62:1)
  • AAA: use #22606d as the text (7.09:1)
  • AA: or shift the background to #242424 (4.56:1)
Aaon black
6.17:1passpassfail
  • AAA: use #3ba5ba as the text (7.28:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3697ab 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

#3697ab reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3697ab
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 #3697ab and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3697ab-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