Color

#3682ab

#3682ab
hex#3682ab
rgbrgb(54, 130, 171)
hslhsl(201, 52%, 44%)
oklchoklch(0.577 0.097 235.6)
Closest name: steelblue (#4682b4)Relative luminance 0.1969

Colors that go with #3682ab

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 #3682ab

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ab5f36

#36ab99 · #3647ab

#ab3682 · #82ab36

Split-complementary

Open in tool →

#ab3647 · #ab9936

#9936ab · #ab5f36 · #47ab36

Contrast

#3682ab as textRatioAAAA largeAAAFix
Aaon white
4.25:1failpassfail
  • AA: use #337ca3 as the text (4.61:1)
  • AAA: use #275e7c as the text (7.05:1)
  • AA: or shift the background to #0f0f0f (4.51:1)
Aaon black
4.94:1passpassfail
  • AAA: use #519ec8 as the text (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3682ab as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#3682ab reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3682ab
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 #3682ab and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3682ab-9cb1c4-df4e62-1f222d-e9f1f0?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