Color

#51691b

#51691b
hex#51691b
rgbrgb(81, 105, 27)
hslhsl(78, 59%, 26%)
oklchoklch(0.485 0.107 125.2)
Closest name: Forestial Outpost (#556611)Relative luminance 0.1193

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#331b69

#695a1b · #2b691b

#1b5269 · #691b52

Split-complementary

Open in tool →

#1b2b69 · #5a1b69

#1b695a · #331b69 · #691b2b

Contrast

#51691b as textRatioAAAA largeAAAFix
Aaon white
6.2:1passpassfail
  • AAA: use #485d18 as the text (7.36:1)
Aaon black
3.39:1failpassfail
  • AA: use #627e20 as the text (4.52:1)
  • AAA: use #7ea22a as the text (7.09:1)
  • AA: or shift the background to #dedede (4.61:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #51691b as the background.

Brands using this color

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

Fonts for this mood

#51691b reads as dark, luxury, bold. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #51691b
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #51691b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/51691b-b2bea2-4e69df-232d1f-f1f0e9?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