Color

#3c8aaf

#3c8aaf
hex#3c8aaf
rgbrgb(60, 138, 175)
hslhsl(199, 49%, 46%)
oklchoklch(0.601 0.094 231.9)
Closest name: steelblue (#4682b4)Relative luminance 0.2223

Colors that go with #3c8aaf

Charcoal, Copper 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#af603c

#3caf9a · #3c51af

#af3c8a · #8aaf3c

Split-complementary

Open in tool →

#af3c51 · #af9a3c

#9a3caf · #af603c · #51af3c

Contrast

#3c8aaf as textRatioAAAA largeAAAFix
Aaon white
3.86:1failpassfail
  • AA: use #377ea0 as the text (4.51:1)
  • AAA: use #285d76 as the text (7.2:1)
  • AA: or shift the background to #1a1a1a (4.51:1)
Aaon black
5.45:1passpassfail
  • AAA: use #509fc3 as the text (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3c8aaf 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

#3c8aaf reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3c8aaf
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 #3c8aaf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3c8aaf-9cb3c4-df4e66-1f232d-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