Color

#134571

#134571
hex#134571
rgbrgb(19, 69, 113)
hslhsl(208, 71%, 26%)
oklchoklch(0.382 0.091 249.4)
Closest name: Aegean Blue (#1b416f)Relative luminance 0.0559

Colors that go with #134571

Crimson, Teal 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#713f13

#13716e · #131671

#711345 · #457113

Split-complementary

Open in tool →

#711316 · #716e13

#6e1371 · #713f13 · #167113

Contrast

#134571 as textRatioAAAA largeAAAFix
Aaon white
9.92:1passpasspassPasses AAA — no fix needed.
Aaon black
2.12:1failfailfail
  • AA: use #2178c4 as the text (4.55:1)
  • AAA: use #4c9be1 as the text (7.08:1)
  • AA: or shift the background to #b0b0b0 (4.57:1)
  • AAA: or shift the background to #d9d9d9 (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #134571 as the background.

Brands using this color

Fonts for this mood

#134571 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #134571
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 #134571 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/134571-9cadc4-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