Color

#42151a

#42151a
hex#42151a
rgbrgb(66, 21, 26)
hslhsl(353, 52%, 17%)
oklchoklch(0.269 0.07 16.4)
Closest name: English Breakfast (#441111)Relative luminance 0.0177

Colors that go with #42151a

Charcoal, Sea Green and Sienna 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 →

#15423d

#421531 · #422615

#1a4215 · #151a42

Split-complementary

Open in tool →

#154226 · #153142

#314215 · #15423d · #261542

Contrast

#42151a as textRatioAAAA largeAAAFix
Aaon white
15.51:1passpasspassPasses AAA — no fix needed.
Aaon black
1.35:1failfailfail
  • AA: use #c74d5b as the text (4.64:1)
  • AAA: use #d57b86 as the text (7.01:1)
  • AA: or shift the background to #8c8c8c (4.61:1)
  • AAA: or shift the background to #b0b0b0 (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 #42151a 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

#42151a reads as warm, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #42151a
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 #42151a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/42151a-c49c9c-62cb8c-2d241f-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