Color

#1a133f

#1a133f
hex#1a133f
rgbrgb(26, 19, 63)
hslhsl(250, 54%, 16%)
oklchoklch(0.226 0.08 285.3)
Closest name: Deadly Depths (#111144)Relative luminance 0.0104

Colors that go with #1a133f

Charcoal, Dark Olive Green and Sea Green 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 →

#373f13

#13213f · #30133f

#3f1a13 · #133f1a

Split-complementary

Open in tool →

#3f3013 · #213f13

#3f1321 · #373f13 · #133f30

Contrast

#1a133f as textRatioAAAA largeAAAFix
Aaon white
17.37:1passpasspassPasses AAA — no fix needed.
Aaon black
1.21:1failfailfail
  • AA: use #7866d1 as the text (4.62:1)
  • AAA: use #9a8ddd as the text (7.23:1)
  • AA: or shift the background to #828282 (4.52:1)
  • AAA: or shift the background to #a6a6a6 (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1a133f as the background.

Brands using this color

Fonts for this mood

#1a133f reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1a133f
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 #1a133f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1a133f-a79cc4-dfb14e-281f2d-e9ecf1?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