Color

#1b132a

#1b132a
hex#1b132a
rgbrgb(27, 19, 42)
hslhsl(261, 38%, 12%)
oklchoklch(0.21 0.045 298.5)
Closest name: Midnight Monarch (#1c0f33)Relative luminance 0.0087

Colors that go with #1b132a

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 →

#222a13

#13162a · #27132a

#2a1b13 · #132a1b

Split-complementary

Open in tool →

#2a2713 · #162a13

#2a1316 · #222a13 · #132a27

Contrast

#1b132a as textRatioAAAA largeAAAFix
Aaon white
17.9:1passpasspassPasses AAA — no fix needed.
Aaon black
1.17:1failfailfail
  • AA: use #8568bb as the text (4.7:1)
  • AAA: use #a18bcb as the text (7.07:1)
  • AA: or shift the background to #808080 (4.53:1)
  • AAA: or shift the background to #a3a3a3 (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 #1b132a as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#1b132a reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1b132a
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 #1b132a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1b132a-af9cc4-dfcb4e-2a1f2d-e9eaf1?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