Color

#420401

#420401
hex#420401
rgbrgb(66, 4, 1)
hslhsl(3, 97%, 13%)
oklchoklch(0.243 0.093 30.5)
Closest name: Lonely Chocolate (#4a0a00)Relative luminance 0.0125

Colors that go with #420401

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 →

#013e41

#41011e · #412401

#014104 · #040141

Split-complementary

Open in tool →

#014124 · #011e41

#1e4101 · #013e41 · #240141

Contrast

#420401 as textRatioAAAA largeAAAFix
Aaon white
16.81:1passpasspassPasses AAA — no fix needed.
Aaon black
1.25:1failfailfail
  • AA: use #ec0f04 as the text (4.64:1)
  • AAA: use #fd665e as the text (7.24:1)
  • AA: or shift the background to #858585 (4.55:1)
  • AAA: or shift the background to #a8a8a8 (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 #420401 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

#420401 reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #420401
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 #420401 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/420401-c4a39c-62cb9d-2d261f-f1e9ed?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