Color

#21240f

#21240f
hex#21240f
rgbrgb(33, 36, 15)
hslhsl(69, 41%, 10%)
oklchoklch(0.251 0.036 115.7)
Closest name: Midnight Pines (#17240b)Relative luminance 0.0162

Colors that go with #21240f

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 →

#120f24

#241d0f · #16240f

#0f2124 · #240f21

Split-complementary

Open in tool →

#0f1624 · #1d0f24

#0f241d · #120f24 · #240f16

Contrast

#21240f as textRatioAAAA largeAAAFix
Aaon white
15.86:1passpasspassPasses AAA — no fix needed.
Aaon black
1.32:1failfailfail
  • AA: use #707a33 as the text (4.52:1)
  • AAA: use #909e42 as the text (7.16:1)
  • AA: or shift the background to #8a8a8a (4.59:1)
  • AAA: or shift the background to #adadad (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 #21240f as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

Fonts for this mood

#21240f reads as dark, luxury, bold. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #21240f
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 #21240f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/21240f-b7bea2-4e7edf-252d1f-f1eee9?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