Color

#401003

#401003
hex#401003
rgbrgb(64, 16, 3)
hslhsl(13, 91%, 13%)
oklchoklch(0.253 0.078 36.9)
Closest name: Black Chocolate (#441100)Relative luminance 0.0147

Tints & shades

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

Harmonies

Complementary

Open in tool →

#03323f

#3f0314 · #3f2e03

#033f10 · #10033f

Split-complementary

Open in tool →

#033f2e · #03143f

#143f03 · #03323f · #2e033f

Contrast

#401003 as textRatioAAAA largeAAAFix
Aaon white
16.24:1passpasspassPasses AAA — no fix needed.
Aaon black
1.29:1failfailfail
  • AA: use #db380a as the text (4.58:1)
  • AAA: use #f66c46 as the text (7.15:1)
  • AA: or shift the background to #878787 (4.52:1)
  • AAA: or shift the background to #ababab (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #401003 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

#401003 reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #401003
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 #401003 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/401003-c4a99c-62cbaf-2d281f-f1e9eb?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