Color

#183d10

#183d10
hex#183d10
rgbrgb(24, 61, 16)
hslhsl(109, 58%, 15%)
oklchoklch(0.321 0.084 140.3)
Closest name: Melancholia (#12390d)Relative luminance 0.0357

Colors that go with #183d10

Crimson, Royal Blue 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 →

#34103c

#2e3c10 · #103c1e

#10183c · #3c1018

Split-complementary

Open in tool →

#1e103c · #3c102e

#102e3c · #34103c · #3c1e10

Contrast

#183d10 as textRatioAAAA largeAAAFix
Aaon white
12.25:1passpasspassPasses AAA — no fix needed.
Aaon black
1.71:1failfailfail
  • AA: use #358523 as the text (4.53:1)
  • AAA: use #45ad2e as the text (7.27:1)
  • AA: or shift the background to #9e9e9e (4.57:1)
  • AAA: or shift the background to #c4c4c4 (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #183d10 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#183d10 reads as dark, luxury, bold. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #183d10
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 #183d10 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/183d10-a4bea2-7e4edf-1f2d23-eef1e9?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