Color

#288a46

#288a46
hex#288a46
rgbrgb(40, 138, 70)
hslhsl(138, 55%, 35%)
oklchoklch(0.561 0.136 149.5)
Closest name: Center Field (#008b56)Relative luminance 0.1907

Colors that go with #288a46

Charcoal, Crimson and Royal Blue 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 →

#8a286d

#3c8a28 · #288a77

#46288a · #8a4628

Split-complementary

Open in tool →

#77288a · #8a283c

#283c8a · #8a286d · #8a7728

Contrast

#288a46 as textRatioAAAA largeAAAFix
Aaon white
4.36:1failpassfail
  • AA: use #278644 as the text (4.59:1)
  • AAA: use #1d6332 as the text (7.28:1)
  • AA: or shift the background to #0a0a0a (4.54:1)
Aaon black
4.81:1passpassfail
  • AAA: use #31aa56 as the text (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #288a46 as the background.

Brands using this color

mcpConnect your agent — build around #288a46
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 #288a46 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/288a46-a2beae-be59d4-1f2d29-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