Color

#3c798b

#3c798b
hex#3c798b
rgbrgb(60, 121, 139)
hslhsl(194, 40%, 39%)
oklchoklch(0.543 0.069 219.6)
Closest name: Harbour Blue (#417491)Relative luminance 0.165

Colors that go with #3c798b

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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#8b4e3c

#3c8b76 · #3c518b

#8b3c79 · #798b3c

Split-complementary

Open in tool →

#8b3c51 · #8b763c

#763c8b · #8b4e3c · #518b3c

Contrast

#3c798b as textRatioAAAA largeAAAFix
Aaon white
4.88:1passpassfail
  • AAA: use #2e5d6b as the text (7.26:1)
Aaon black
4.3:1failpassfail
  • AA: use #3f7f92 as the text (4.66:1)
  • AAA: use #549fb6 as the text (7.01:1)
  • AA: or shift the background to #f7f7f7 (4.56:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3c798b 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

#3c798b reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3c798b
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 #3c798b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3c798b-9cb6c4-df4e72-1f242d-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