Color

#21071a

#21071a
hex#21071a
rgbrgb(33, 7, 26)
hslhsl(316, 65%, 8%)
oklchoklch(0.184 0.054 339.3)
Closest name: Shot in the Dark (#1d0d1d)Relative luminance 0.0055

Colors that go with #21071a

Charcoal, Sea Green and Teal 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 →

#07220e

#1b0722 · #22070d

#1b2207 · #071b22

Split-complementary

Open in tool →

#0d2207 · #07221b

#221b07 · #07220e · #070d22

Contrast

#21071a as textRatioAAAA largeAAAFix
Aaon white
18.92:1passpasspassPasses AAA — no fix needed.
Aaon black
1.11:1failfailfail
  • AA: use #ce2ca3 as the text (4.51:1)
  • AAA: use #e06cc1 as the text (7.08:1)
  • AA: or shift the background to #7d7d7d (4.6:1)
  • AAA: or shift the background to #9e9e9e (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #21071a 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

#21071a reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #21071a
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 #21071a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/21071a-c19fb4-79cb62-2d1f23-efe9f1?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