Color

#13435d

#13435d
hex#13435d
rgbrgb(19, 67, 93)
hslhsl(201, 66%, 22%)
oklchoklch(0.364 0.067 236.9)
Closest name: Capital Blue (#1a4157)Relative luminance 0.0494

Colors that go with #13435d

Crimson, Royal 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 →

#5d2d13

#135d52 · #131e5d

#5d1343 · #435d13

Split-complementary

Open in tool →

#5d131e · #5d5213

#52135d · #5d2d13 · #1e5d13

Contrast

#13435d as textRatioAAAA largeAAAFix
Aaon white
10.56:1passpasspassPasses AAA — no fix needed.
Aaon black
1.99:1failfailfail
  • AA: use #247dae as the text (4.62:1)
  • AAA: use #389fd6 as the text (7.1:1)
  • AA: or shift the background to #ababab (4.6:1)
  • AAA: or shift the background to #d4d4d4 (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #13435d as the background.

Brands using this color

Fonts for this mood

#13435d reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #13435d
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 #13435d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/13435d-9cb1c4-df4e62-1f222d-e9f1f0?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