Color

#21782e

#21782e
hex#21782e
rgbrgb(33, 120, 46)
hslhsl(129, 57%, 30%)
oklchoklch(0.505 0.137 145.5)
Closest name: Forestial (#007733)Relative luminance 0.1395

Colors that go with #21782e

Charcoal, Crimson and Denim 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 →

#78216b

#3f7821 · #21785a

#2e2178 · #782e21

Split-complementary

Open in tool →

#5a2178 · #78213f

#213f78 · #78216b · #785a21

Contrast

#21782e as textRatioAAAA largeAAAFix
Aaon white
5.54:1passpassfail
  • AAA: use #1b6426 as the text (7.25:1)
Aaon black
3.79:1failpassfail
  • AA: use #258834 as the text (4.65:1)
  • AAA: use #2fac42 as the text (7.1:1)
  • AA: or shift the background to #e8e8e8 (4.52:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #21782e 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

#21782e reads as dark, luxury, bold. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #21782e
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 #21782e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/21782e-a2bea9-ae4edf-1f2d27-ecf1e9?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