Color

#42010a

#42010a
hex#42010a
rgbrgb(66, 1, 10)
hslhsl(352, 97%, 13%)
oklchoklch(0.241 0.095 20.7)
Closest name: English Breakfast (#441111)Relative luminance 0.012

Tints & shades

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

Harmonies

Complementary

Open in tool →

#014139

#41012a · #411901

#0a4101 · #010a41

Split-complementary

Open in tool →

#014119 · #012a41

#2a4101 · #014139 · #190141

Contrast

#42010a as textRatioAAAA largeAAAFix
Aaon white
16.93:1passpasspassPasses AAA — no fix needed.
Aaon black
1.24:1failfailfail
  • AA: use #ec0423 as the text (4.61:1)
  • AAA: use #fd5e73 as the text (7.03:1)
  • AA: or shift the background to #858585 (4.59:1)
  • AAA: or shift the background to #a8a8a8 (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 #42010a as the background.

Brands using this color

Fonts for this mood

#42010a reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #42010a
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 #42010a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/42010a-c49c9d-62cb8a-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