Color

#39040c

#39040c
hex#39040c
rgbrgb(57, 4, 12)
hslhsl(351, 87%, 12%)
oklchoklch(0.224 0.081 18.4)
Closest name: English Breakfast (#441111)Relative luminance 0.0098

Tints & shades

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

Harmonies

Complementary

Open in tool →

#043931

#390427 · #391704

#0c3904 · #040c39

Split-complementary

Open in tool →

#043917 · #042739

#273904 · #043931 · #170439

Contrast

#39040c as textRatioAAAA largeAAAFix
Aaon white
17.55:1passpasspassPasses AAA — no fix needed.
Aaon black
1.2:1failfailfail
  • AA: use #ea1031 as the text (4.62:1)
  • AAA: use #f4667c as the text (7.04:1)
  • AA: or shift the background to #828282 (4.57:1)
  • AAA: or shift the background to #a6a6a6 (7.21:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #39040c 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

#39040c reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #39040c
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 #39040c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/39040c-c49c9e-62cb89-2d231f-f1e9ee?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