Color

#3f280d

#3f280d
hex#3f280d
rgbrgb(63, 40, 13)
hslhsl(32, 66%, 15%)
oklchoklch(0.299 0.053 67.5)
Closest name: Chocolate Castle (#452207)Relative luminance 0.026

Tints & shades

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

Harmonies

Complementary

Open in tool →

#0d253f

#3f0f0d · #3e3f0d

#0d3f28 · #280d3f

Split-complementary

Open in tool →

#0d3e3f · #0f0d3f

#0d3f0f · #0d253f · #3f0d3e

Contrast

#3f280d as textRatioAAAA largeAAAFix
Aaon white
13.81:1passpasspassPasses AAA — no fix needed.
Aaon black
1.52:1failfailfail
  • AA: use #a56822 as the text (4.6:1)
  • AAA: use #d4852b as the text (7.19:1)
  • 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 #3f280d 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

#3f280d reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3f280d
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 #3f280d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3f280d-c4b69c-62c5cb-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