Color

#180e2a

#180e2a
hex#180e2a
rgbrgb(24, 14, 42)
hslhsl(261, 50%, 11%)
oklchoklch(0.195 0.055 297.5)
Closest name: Midnight Monarch (#1c0f33)Relative luminance 0.0068

Tints & shades

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

Harmonies

Complementary

Open in tool →

#202a0e

#0e122a · #260e2a

#2a180e · #0e2a18

Split-complementary

Open in tool →

#2a260e · #122a0e

#2a0e12 · #202a0e · #0e2a26

Contrast

#180e2a as textRatioAAAA largeAAAFix
Aaon white
18.5:1passpasspassPasses AAA — no fix needed.
Aaon black
1.14:1failfailfail
  • AA: use #8762cb as the text (4.64:1)
  • AAA: use #a488d7 as the text (7.08:1)
  • AA: or shift the background to #808080 (4.68:1)
  • AAA: or shift the background to #a1a1a1 (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #180e2a as the background.

Brands using this color

Fonts for this mood

#180e2a reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #180e2a
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 #180e2a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/180e2a-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