Color

#187c3e

#187c3e
hex#187c3e
rgbrgb(24, 124, 62)
hslhsl(143, 68%, 29%)
oklchoklch(0.517 0.13 150.7)
Closest name: Gale of the Wind (#007844)Relative luminance 0.1496

Colors that go with #187c3e

Charcoal, Royal Blue and Medium Violet Red 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 →

#7c1856

#237c18 · #187c71

#3e187c · #7c3e18

Split-complementary

Open in tool →

#71187c · #7c1823

#18237c · #7c1856 · #7c7118

Contrast

#187c3e as textRatioAAAA largeAAAFix
Aaon white
5.26:1passpassfail
  • AAA: use #136331 as the text (7.35:1)
Aaon black
3.99:1failpassfail
  • AA: use #1a8945 as the text (4.71:1)
  • AAA: use #21ab56 as the text (7.02:1)
  • AA: or shift the background to #f0f0f0 (4.62:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #187c3e as the background.

Brands using this color

Fonts for this mood

#187c3e reads as vivid, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #187c3e
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 #187c3e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/187c3e-a2beb0-c859d4-1f2d2b-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