Color

#13474e

#13474e
hex#13474e
rgbrgb(19, 71, 78)
hslhsl(187, 61%, 19%)
oklchoklch(0.368 0.054 207.9)
Closest name: Cold and Dark (#154250)Relative luminance 0.0519

Colors that go with #13474e

Crimson, Steel Blue and Teal 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 →

#4e1a13

#134e37 · #132a4e

#4e1347 · #474e13

Split-complementary

Open in tool →

#4e132a · #4e3713

#37134e · #4e1a13 · #2a4e13

Contrast

#13474e as textRatioAAAA largeAAAFix
Aaon white
10.3:1passpasspassPasses AAA — no fix needed.
Aaon black
2.04:1failfailfail
  • AA: use #238390 as the text (4.72:1)
  • AAA: use #2ca5b5 as the text (7.16:1)
  • AA: or shift the background to #adadad (4.59:1)
  • AAA: or shift the background to #d6d6d6 (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 #13474e as the background.

Brands using this color

Fonts for this mood

#13474e reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #13474e
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 #13474e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/13474e-a2b8be-df4e83-1f262d-e9f1ee?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