Color

#3f7083

#3f7083
hex#3f7083
rgbrgb(63, 112, 131)
hslhsl(197, 35%, 38%)
oklchoklch(0.518 0.061 225.1)
Closest name: Calypso (#3d7188)Relative luminance 0.1428

Colors that go with #3f7083

Charcoal, Sienna 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 #3f7083

Tints & shades

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

Harmonies

Complementary

Open in tool →

#83523f

#3f8374 · #3f4e83

#833f70 · #70833f

Split-complementary

Open in tool →

#833f4e · #83743f

#743f83 · #83523f · #4e833f

Contrast

#3f7083 as textRatioAAAA largeAAAFix
Aaon white
5.44:1passpassfail
  • AAA: use #355e6e as the text (7.05:1)
Aaon black
3.86:1failpassfail
  • AA: use #467b91 as the text (4.5:1)
  • AAA: use #649eb4 as the text (7.09:1)
  • AA: or shift the background to #ebebeb (4.57:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3f7083 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

#3f7083 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3f7083
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 #3f7083 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3f7083-9cb4c4-df4e6b-1f232d-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