Color

#288f1e

#288f1e
hex#288f1e
rgbrgb(40, 143, 30)
hslhsl(115, 65%, 34%)
oklchoklch(0.57 0.174 141.9)
Closest name: Emerald (#028f1e)Relative luminance 0.2019

Colors that go with #288f1e

Crimson, Royal Blue and Charcoal 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 →

#861e8f

#608f1e · #1e8f4d

#1e288f · #8f1e28

Split-complementary

Open in tool →

#4d1e8f · #8f1e60

#1e608f · #861e8f · #8f4d1e

Contrast

#288f1e as textRatioAAAA largeAAAFix
Aaon white
4.17:1failpassfail
  • AA: use #25871d as the text (4.6:1)
  • AAA: use #1c6515 as the text (7.19:1)
  • AA: or shift the background to #0f0f0f (4.6:1)
Aaon black
5.04:1passpassfail
  • AAA: use #30ad25 as the text (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #288f1e as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

mcpConnect your agent — build around #288f1e
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 #288f1e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/288f1e-a2bea3-8d4edf-1f2d24-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