Color

#183e2a

#183e2a
hex#183e2a
rgbrgb(24, 62, 42)
hslhsl(148, 44%, 17%)
oklchoklch(0.33 0.057 158.1)
Closest name: Queen of Trees (#1c401f)Relative luminance 0.0381

Colors that go with #183e2a

Crimson, Sienna and Teal 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 →

#3e182d

#1a3e18 · #183e3d

#2a183e · #3e2a18

Split-complementary

Open in tool →

#3d183e · #3e181a

#181a3e · #3e182d · #3e3d18

Contrast

#183e2a as textRatioAAAA largeAAAFix
Aaon white
11.92:1passpasspassPasses AAA — no fix needed.
Aaon black
1.76:1failfailfail
  • AA: use #338459 as the text (4.59:1)
  • AAA: use #42a972 as the text (7.15:1)
  • AA: or shift the background to #a1a1a1 (4.61:1)
  • AAA: or shift the background to #c7c7c7 (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #183e2a as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#183e2a reads as dark, luxury, bold. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #183e2a
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 #183e2a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/183e2a-a2beb2-d259d4-1f2d2c-eaf1e9?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