Color

#1d133e

#1d133e
hex#1d133e
rgbrgb(29, 19, 62)
hslhsl(254, 53%, 16%)
oklchoklch(0.228 0.079 289.4)
Closest name: Midnight Monarch (#1c0f33)Relative luminance 0.0107

Colors that go with #1d133e

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 →

#343e13

#131f3e · #33133e

#3e1d13 · #133e1d

Split-complementary

Open in tool →

#3e3313 · #1f3e13

#3e131f · #343e13 · #133e33

Contrast

#1d133e as textRatioAAAA largeAAAFix
Aaon white
17.28:1passpasspassPasses AAA — no fix needed.
Aaon black
1.21:1failfailfail
  • AA: use #7c63cf as the text (4.54:1)
  • AAA: use #9d8adb as the text (7.09:1)
  • AA: or shift the background to #858585 (4.68:1)
  • AAA: or shift the background to #a6a6a6 (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1d133e as the background.

Brands using this color

Fonts for this mood

#1d133e reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1d133e
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 #1d133e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1d133e-aa9cc4-dfbb4e-291f2d-e9ebf1?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