Color

#18901a

#18901a
hex#18901a
rgbrgb(24, 144, 26)
hslhsl(121, 71%, 33%)
oklchoklch(0.57 0.181 142.9)
Closest name: Emerald (#028f1e)Relative luminance 0.2022

Colors that go with #18901a

Crimson, Royal Blue and Charcoal 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 →

#90188e

#529018 · #189056

#1a1890 · #901a18

Split-complementary

Open in tool →

#561890 · #901852

#185290 · #90188e · #905618

Contrast

#18901a as textRatioAAAA largeAAAFix
Aaon white
4.16:1failpassfail
  • AA: use #178719 as the text (4.65:1)
  • AAA: use #116412 as the text (7.35:1)
  • AA: or shift the background to #0f0f0f (4.6:1)
Aaon black
5.04:1passpassfail
  • AAA: use #1eae20 as the text (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #18901a as the background.

Brands using this color

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

mcpConnect your agent — build around #18901a
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 #18901a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/18901a-a2bea6-9b4edf-1f2d26-edf1e9?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