Color

#51920c

#51920c
hex#51920c
rgbrgb(81, 146, 12)
hslhsl(89, 85%, 31%)
oklchoklch(0.593 0.166 134)
Closest name: Grass Is Greener (#3f9b0b)Relative luminance 0.2233

Colors that go with #51920c

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 →

#4d0c92

#92900c · #0e920c

#0c5192 · #920c51

Split-complementary

Open in tool →

#0c0e92 · #900c92

#0c9290 · #4d0c92 · #920c0e

Contrast

#51920c as textRatioAAAA largeAAAFix
Aaon white
3.84:1failpassfail
  • AA: use #49840b as the text (4.58:1)
  • AAA: use #376308 as the text (7.12:1)
  • AA: or shift the background to #1a1a1a (4.53:1)
Aaon black
5.47:1passpassfail
  • AAA: use #5eaa0e as the text (7.23:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #51920c 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 #51920c
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 #51920c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/51920c-adbea2-4e4edf-212d1f-f1f1e9?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