Color

#28890b

#28890b
hex#28890b
rgbrgb(40, 137, 11)
hslhsl(106, 85%, 29%)
oklchoklch(0.552 0.175 140.4)
Closest name: Green Bell Pepper (#228800)Relative luminance 0.1837

Colors that go with #28890b

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 →

#6b0b89

#67890b · #0b892d

#0b2889 · #890b28

Split-complementary

Open in tool →

#2d0b89 · #890b67

#0b6789 · #6b0b89 · #892d0b

Contrast

#28890b as textRatioAAAA largeAAAFix
Aaon white
4.49:1failpassfail
  • AA: use #27840b as the text (4.78:1)
  • AAA: use #1d6308 as the text (7.39:1)
  • AA: or shift the background to #050505 (4.54:1)
Aaon black
4.67:1passpassfail
  • AAA: use #34af0e as the text (7.28:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #28890b as the background.

Brands using this color

Fonts for this mood

#28890b reads as vivid, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #28890b
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 #28890b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/28890b-a5bea2-774edf-1f2d22-eff1e9?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