Color

#180d2b

#180d2b
hex#180d2b
rgbrgb(24, 13, 43)
hslhsl(262, 54%, 11%)
oklchoklch(0.193 0.059 297.6)
Closest name: Midnight Monarch (#1c0f33)Relative luminance 0.0066

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#202b0d

#0d112b · #270d2b

#2b180d · #0d2b18

Split-complementary

Open in tool →

#2b270d · #112b0d

#2b0d11 · #202b0d · #0d2b27

Contrast

#180d2b as textRatioAAAA largeAAAFix
Aaon white
18.56:1passpasspassPasses AAA — no fix needed.
Aaon black
1.13:1failfailfail
  • AA: use #875ecf as the text (4.53:1)
  • AAA: use #a789dc as the text (7.25:1)
  • AA: or shift the background to #7d7d7d (4.51:1)
  • AAA: or shift the background to #a1a1a1 (7.18:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #180d2b as the background.

Brands using this color

Fonts for this mood

#180d2b reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #180d2b
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #180d2b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/180d2b-af9cc4-dfce4e-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