Color

#9de378

#9de378
hex#9de378
rgbrgb(157, 227, 120)
hslhsl(99, 66%, 68%)
oklchoklch(0.845 0.156 135.7)
Closest name: Last of Lettuce (#aadd66)Relative luminance 0.6346

Colors that go with #9de378

Charcoal, Plum 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 →

#be78e3

#d3e378 · #78e388

#789de3 · #e3789d

Split-complementary

Open in tool →

#8878e3 · #e378d3

#78d3e3 · #be78e3 · #e38878

Contrast

#9de378 as textRatioAAAA largeAAAFix
Aaon white
1.53:1failfailfail
  • AA: use #3f831b as the text (4.69:1)
  • AAA: use #2f6114 as the text (7.39:1)
  • AA: or shift the background to #595959 (4.57:1)
  • AAA: or shift the background to #3d3d3d (7.08:1)
Aaon black
13.69:1passpasspassPasses AAA — no fix needed.

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #9de378 as the background.

Brands using this color

mcpConnect your agent — build around #9de378
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 #9de378 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/9de378-a8bea2-664edf-1f2d21-f0f1e9?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