Color

#3d290a

#3d290a
hex#3d290a
rgbrgb(61, 41, 10)
hslhsl(36, 72%, 14%)
oklchoklch(0.298 0.053 74.6)
Closest name: Secret Passage (#372a05)Relative luminance 0.026

Tints & shades

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

Harmonies

Complementary

Open in tool →

#0a1f3d

#3d0f0a · #383d0a

#0a3d29 · #290a3d

Split-complementary

Open in tool →

#0a383d · #0f0a3d

#0a3d0f · #0a1f3d · #3d0a38

Contrast

#3d290a as textRatioAAAA largeAAAFix
Aaon white
13.82:1passpasspassPasses AAA — no fix needed.
Aaon black
1.52:1failfailfail
  • AA: use #a26c1a as the text (4.7:1)
  • AAA: use #ce8922 as the text (7.23:1)
  • AA: or shift the background to #949494 (4.55:1)
  • AAA: or shift the background to #bababa (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3d290a as the background.

Brands using this color

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

Palettes built around it

Fonts for this mood

#3d290a reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3d290a
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 #3d290a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3d290a-c4b99c-62bfcb-2d2d1f-f1eae9?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