Color

#134e81

#134e81
hex#134e81
rgbrgb(19, 78, 129)
hslhsl(208, 74%, 29%)
oklchoklch(0.415 0.103 249.5)
Closest name: Assassin (#2d4f83)Relative luminance 0.0717

Colors that go with #134e81

Crimson, Blue and Cornflower Blue 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 →

#814613

#13817d · #131781

#81134e · #4e8113

Split-complementary

Open in tool →

#811317 · #817d13

#7d1381 · #814613 · #178113

Contrast

#134e81 as textRatioAAAA largeAAAFix
Aaon white
8.63:1passpasspassPasses AAA — no fix needed.
Aaon black
2.43:1failfailfail
  • AA: use #1e78c8 as the text (4.58:1)
  • AAA: use #499ce4 as the text (7.16:1)
  • AA: or shift the background to #bdbdbd (4.59:1)
  • AAA: or shift the background to #e8e8e8 (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #134e81 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

Fonts for this mood

#134e81 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #134e81
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 #134e81 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/134e81-9cadc4-df4e51-1f212d-e9f1f1?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