Color

#12a12c

#12a12c
hex#12a12c
rgbrgb(18, 161, 44)
hslhsl(131, 80%, 35%)
oklchoklch(0.618 0.191 144.6)
Closest name: Grass Is Greener (#3f9b0b)Relative luminance 0.258

Colors that go with #12a12c

Charcoal, Blue and Crimson 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 →

#a11286

#3fa112 · #12a173

#2c12a1 · #a12c12

Split-complementary

Open in tool →

#7312a1 · #a1123f

#123fa1 · #a11286 · #a17312

Contrast

#12a12c as textRatioAAAA largeAAAFix
Aaon white
3.41:1failpassfail
  • AA: use #0f8524 as the text (4.77:1)
  • AAA: use #0b651c as the text (7.26:1)
  • AA: or shift the background to #242424 (4.55:1)
Aaon black
6.16:1passpassfail
  • AAA: use #13ae30 as the text (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #12a12c 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 #12a12c
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 #12a12c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/12a12c-a2beaa-b34edf-1f2d28-ecf1e9?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