Color

#134e53

#134e53
hex#134e53
rgbrgb(19, 78, 83)
hslhsl(185, 63%, 20%)
oklchoklch(0.39 0.059 203.4)
Closest name: darkslategray (#2f4f4f)Relative luminance 0.0621

Colors that go with #134e53

Crimson, Steel Blue and 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.

Real palettes that use #134e53

Tints & shades

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

Harmonies

Complementary

Open in tool →

#531813

#135338 · #132e53

#53134e · #4e5313

Split-complementary

Open in tool →

#53132e · #533813

#381353 · #531813 · #2e5313

Contrast

#134e53 as textRatioAAAA largeAAAFix
Aaon white
9.37:1passpasspassPasses AAA — no fix needed.
Aaon black
2.24:1failfailfail
  • AA: use #1f8089 as the text (4.51:1)
  • AAA: use #29a7b3 as the text (7.27:1)
  • AA: or shift the background to #b5b5b5 (4.57:1)
  • AAA: or shift the background to #e0e0e0 (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 #134e53 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#134e53 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #134e53
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 #134e53 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/134e53-a2b8be-df4e88-1f262d-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