Color

#287639

#287639
hex#287639
rgbrgb(40, 118, 57)
hslhsl(133, 49%, 31%)
oklchoklch(0.503 0.121 147.7)
Closest name: Gale of the Wind (#007844)Relative luminance 0.137

Colors that go with #287639

Charcoal, Blue and Copper 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 →

#762865

#3e7628 · #287660

#392876 · #763928

Split-complementary

Open in tool →

#602876 · #76283e

#283e76 · #762865 · #766028

Contrast

#287639 as textRatioAAAA largeAAAFix
Aaon white
5.61:1passpassfail
  • AAA: use #226330 as the text (7.25:1)
Aaon black
3.74:1failpassfail
  • AA: use #2e8540 as the text (4.55:1)
  • AAA: use #3bab53 as the text (7.14:1)
  • AA: or shift the background to #e8e8e8 (4.58:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #287639 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 #287639
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 #287639 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/287639-a2beab-b84edf-1f2d28-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