Color

#1b4b1f

#1b4b1f
hex#1b4b1f
rgbrgb(27, 75, 31)
hslhsl(125, 47%, 20%)
oklchoklch(0.368 0.089 145)
Closest name: Treetop Cathedral (#2f4a15)Relative luminance 0.0536

Tints & shades

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

Harmonies

Complementary

Open in tool →

#4b1b47

#2f4b1b · #1b4b37

#1f1b4b · #4b1f1b

Split-complementary

Open in tool →

#371b4b · #4b1b2f

#1b2f4b · #4b1b47 · #4b371b

Contrast

#1b4b1f as textRatioAAAA largeAAAFix
Aaon white
10.13:1passpasspassPasses AAA — no fix needed.
Aaon black
2.07:1failfailfail
  • AA: use #318738 as the text (4.65:1)
  • AAA: use #3eac47 as the text (7.2:1)
  • AA: or shift the background to #adadad (4.51:1)
  • AAA: or shift the background to #d9d9d9 (7.18:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1b4b1f 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

#1b4b1f reads as dark, luxury, bold. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1b4b1f
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 #1b4b1f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1b4b1f-a2bea7-a54edf-1f2d26-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