Color

#3c7490

#3c7490
hex#3c7490
rgbrgb(60, 116, 144)
hslhsl(200, 41%, 40%)
oklchoklch(0.533 0.074 232.2)
Closest name: Harbour Blue (#417491)Relative luminance 0.1547

Colors that go with #3c7490

Charcoal, Royal Blue and Sienna 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 #3c7490

Tints & shades

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

Harmonies

Complementary

Open in tool →

#90583c

#3c9082 · #3c4a90

#903c74 · #74903c

Split-complementary

Open in tool →

#903c4a · #90823c

#823c90 · #90583c · #4a903c

Contrast

#3c7490 as textRatioAAAA largeAAAFix
Aaon white
5.13:1passpassfail
  • AAA: use #305d73 as the text (7.15:1)
Aaon black
4.09:1failpassfail
  • AA: use #417d9b as the text (4.63:1)
  • AAA: use #619ebd as the text (7.13:1)
  • AA: or shift the background to #f0f0f0 (4.5:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3c7490 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

#3c7490 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3c7490
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 #3c7490 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3c7490-9cb2c4-df4e64-1f232d-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