Color

#21850f

#21850f
hex#21850f
rgbrgb(33, 133, 15)
hslhsl(111, 80%, 29%)
oklchoklch(0.539 0.171 141.3)
Closest name: Green Bell Pepper (#228800)Relative luminance 0.1713

Colors that go with #21850f

Royal Blue, Charcoal and Crimson 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 →

#730f85

#5c850f · #0f8538

#0f2185 · #850f21

Split-complementary

Open in tool →

#380f85 · #850f5c

#0f5c85 · #730f85 · #85380f

Contrast

#21850f as textRatioAAAA largeAAAFix
Aaon white
4.74:1passpassfail
  • AAA: use #19650b as the text (7.22:1)
Aaon black
4.43:1failpassfail
  • AA: use #228a0f as the text (4.71:1)
  • AAA: use #2bae13 as the text (7.17:1)
  • AA: or shift the background to #fafafa (4.55:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #21850f as the background.

Brands using this color

Fonts for this mood

#21850f reads as vivid, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #21850f
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 #21850f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/21850f-a3bea2-834edf-1f2d23-eef1e9?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