Color

#420b2c

#420b2c
hex#420b2c
rgbrgb(66, 11, 44)
hslhsl(324, 71%, 15%)
oklchoklch(0.263 0.091 348.5)
Closest name: Dark Sanctuary (#3f012c)Relative luminance 0.0158

Colors that go with #420b2c

Charcoal, Crimson 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 →

#0b4121

#3c0b41 · #410b11

#2c410b · #0b2c41

Split-complementary

Open in tool →

#11410b · #0b413c

#413c0b · #0b4121 · #0b1141

Contrast

#420b2c as textRatioAAAA largeAAAFix
Aaon white
15.96:1passpasspassPasses AAA — no fix needed.
Aaon black
1.32:1failfailfail
  • AA: use #d6248f as the text (4.51:1)
  • AAA: use #e66bb5 as the text (7.13:1)
  • AA: or shift the background to #8a8a8a (4.62:1)
  • AAA: or shift the background to #adadad (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #420b2c 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

#420b2c reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #420b2c
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 #420b2c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/420b2c-c19faf-6bcb62-2d1f22-f0e9f1?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