Color

#12912b

#12912b
hex#12912b
rgbrgb(18, 145, 43)
hslhsl(132, 78%, 32%)
oklchoklch(0.573 0.174 145.1)
Closest name: Emerald (#028f1e)Relative luminance 0.2055

Colors that go with #12912b

Crimson, Royal Blue and Dark Orchid 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 →

#911278

#389112 · #12916b

#2b1291 · #912b12

Split-complementary

Open in tool →

#6b1291 · #911238

#123891 · #911278 · #916b12

Contrast

#12912b as textRatioAAAA largeAAAFix
Aaon white
4.11:1failpassfail
  • AA: use #118829 as the text (4.59:1)
  • AAA: use #0c641e as the text (7.35:1)
  • AA: or shift the background to #121212 (4.56:1)
Aaon black
5.11:1passpassfail
  • AAA: use #16b135 as the text (7.37:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #12912b 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 #12912b
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 #12912b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/12912b-a2beab-b64edf-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