Color

#28813f

#28813f
hex#28813f
rgbrgb(40, 129, 63)
hslhsl(136, 53%, 33%)
oklchoklch(0.535 0.131 148.4)
Closest name: Bold Irish (#2a814d)Relative luminance 0.1651

Colors that go with #28813f

Charcoal, Royal Blue and Dark Orchid 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 →

#812869

#3c8128 · #28816c

#3f2881 · #813f28

Split-complementary

Open in tool →

#6c2881 · #81283c

#283c81 · #812869 · #816c28

Contrast

#28813f as textRatioAAAA largeAAAFix
Aaon white
4.88:1passpassfail
  • AAA: use #1f6532 as the text (7.08:1)
Aaon black
4.3:1failpassfail
  • AA: use #298541 as the text (4.53:1)
  • AAA: use #35ac54 as the text (7.18:1)
  • AA: or shift the background to #f7f7f7 (4.56:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #28813f as the background.

Brands using this color

mcpConnect your agent — build around #28813f
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 #28813f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/28813f-a2bead-b959d4-1f2d29-ebf1e9?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