Color

#013b79

#013b79
hex#013b79
rgbrgb(1, 59, 121)
hslhsl(211, 98%, 24%)
oklchoklch(0.359 0.119 255.4)
Closest name: Atlantic Navy (#13336f)Relative luminance 0.0451

Colors that go with #013b79

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 →

#793f01

#017779 · #030179

#79013b · #3b7901

Split-complementary

Open in tool →

#790301 · #777901

#790177 · #793f01 · #017903

Contrast

#013b79 as textRatioAAAA largeAAAFix
Aaon white
11.04:1passpasspassPasses AAA — no fix needed.
Aaon black
1.9:1failfailfail
  • AA: use #0271e8 as the text (4.53:1)
  • AAA: use #3a98fd as the text (7.09:1)
  • AA: or shift the background to #a6a6a6 (4.53:1)
  • AAA: or shift the background to #cfcfcf (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #013b79 as the background.

Brands using this color

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

Fonts for this mood

#013b79 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #013b79
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 #013b79 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/013b79-9cabc4-df534e-1f202d-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