Color

#1d3f2b

#1d3f2b
hex#1d3f2b
rgbrgb(29, 63, 43)
hslhsl(145, 37%, 18%)
oklchoklch(0.335 0.054 156.1)
Closest name: Queen of Trees (#1c401f)Relative luminance 0.0399

Tints & shades

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

Harmonies

Complementary

Open in tool →

#3f1d31

#203f1d · #1d3f3c

#2b1d3f · #3f2b1d

Split-complementary

Open in tool →

#3c1d3f · #3f1d20

#1d203f · #3f1d31 · #3f3c1d

Contrast

#1d3f2b as textRatioAAAA largeAAAFix
Aaon white
11.68:1passpasspassPasses AAA — no fix needed.
Aaon black
1.8:1failfailfail
  • AA: use #3d855b as the text (4.7:1)
  • AAA: use #4da873 as the text (7.16:1)
  • AA: or shift the background to #a1a1a1 (4.52:1)
  • AAA: or shift the background to #c9c9c9 (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1d3f2b 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

#1d3f2b reads as dark, luxury, bold. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1d3f2b
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 #1d3f2b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1d3f2b-a2beb1-cc59d4-1f2d2b-eaf1e9?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