Color

#421006

#421006
hex#421006
rgbrgb(66, 16, 6)
hslhsl(10, 83%, 14%)
oklchoklch(0.258 0.08 33.6)
Closest name: Black Chocolate (#441100)Relative luminance 0.0154

Colors that go with #421006

Charcoal, Royal Blue and Sea Green lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#063741

#41061a · #412e06

#064110 · #100641

Split-complementary

Open in tool →

#06412e · #061a41

#1a4106 · #063741 · #2e0641

Contrast

#421006 as textRatioAAAA largeAAAFix
Aaon white
16.05:1passpasspassPasses AAA — no fix needed.
Aaon black
1.31:1failfailfail
  • AA: use #db3614 as the text (4.55:1)
  • AAA: use #ef7057 as the text (7.13:1)
  • AA: or shift the background to #8a8a8a (4.65:1)
  • AAA: or shift the background to #adadad (7.15:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #421006 as the background.

Brands using this color

Fonts for this mood

#421006 reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #421006
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #421006 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/421006-c4a79c-62cbaa-2d281f-f1e9ec?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