Color

#133f67

#133f67
hex#133f67
rgbrgb(19, 63, 103)
hslhsl(209, 69%, 24%)
oklchoklch(0.36 0.084 249.7)
Closest name: Aegean Blue (#1b416f)Relative luminance 0.0467

Colors that go with #133f67

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 →

#673c13

#136766 · #131467

#67133f · #3f6713

Split-complementary

Open in tool →

#671314 · #676613

#661367 · #673c13 · #146713

Contrast

#133f67 as textRatioAAAA largeAAAFix
Aaon white
10.86:1passpasspassPasses AAA — no fix needed.
Aaon black
1.93:1failfailfail
  • AA: use #2478c6 as the text (4.58:1)
  • AAA: use #539bdf as the text (7.12:1)
  • AA: or shift the background to #a8a8a8 (4.57:1)
  • AAA: or shift the background to #d1d1d1 (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #133f67 as the background.

Brands using this color

Fonts for this mood

#133f67 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #133f67
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 #133f67 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/133f67-9cacc4-df4e4e-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