Color

#3c80aa

#3c80aa
hex#3c80aa
rgbrgb(60, 128, 170)
hslhsl(203, 48%, 45%)
oklchoklch(0.574 0.094 238.6)
Closest name: steelblue (#4682b4)Relative luminance 0.193

Colors that go with #3c80aa

Charcoal, Copper and Royal Blue 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 #3c80aa

Tints & shades

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

Harmonies

Complementary

Open in tool →

#aa663c

#3caa9d · #3c49aa

#aa3c80 · #80aa3c

Split-complementary

Open in tool →

#aa3c49 · #aa9d3c

#9d3caa · #aa663c · #49aa3c

Contrast

#3c80aa as textRatioAAAA largeAAAFix
Aaon white
4.32:1failpassfail
  • AA: use #3a7da6 as the text (4.5:1)
  • AAA: use #2a5b79 as the text (7.31:1)
  • AA: or shift the background to #0a0a0a (4.58:1)
Aaon black
4.86:1passpassfail
  • AAA: use #5d9ec6 as the text (7.17:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3c80aa 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

#3c80aa reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3c80aa
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 #3c80aa and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3c80aa-9cb0c4-df4e5d-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