Color

#3d8499

#3d8499
hex#3d8499
rgbrgb(61, 132, 153)
hslhsl(194, 43%, 42%)
oklchoklch(0.576 0.078 220)
Closest name: Ahoy! Blue (#0082a1)Relative luminance 0.1979

Colors that go with #3d8499

Charcoal, Copper and Rust 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 →

#99533d

#3d9981 · #3d5699

#993d84 · #84993d

Split-complementary

Open in tool →

#993d56 · #99813d

#813d99 · #99533d · #56993d

Contrast

#3d8499 as textRatioAAAA largeAAAFix
Aaon white
4.23:1failpassfail
  • AA: use #3a7d92 as the text (4.64:1)
  • AAA: use #2c5e6d as the text (7.17:1)
  • AA: or shift the background to #0f0f0f (4.53:1)
Aaon black
4.96:1passpassfail
  • AAA: use #50a1b9 as the text (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3d8499 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

#3d8499 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3d8499
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 #3d8499 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3d8499-9cb6c4-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