Color

#9ffb28

#9ffb28
hex#9ffb28
rgbrgb(159, 251, 40)
hslhsl(86, 96%, 57%)
oklchoklch(0.896 0.238 131.8)
Closest name: greenyellow (#adff2f)Relative luminance 0.7652

Colors that go with #9ffb28

Violet, 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 →

#8328fb

#fbed28 · #36fb28

#289ffb · #fb289f

Split-complementary

Open in tool →

#2836fb · #ed28fb

#28fbed · #8328fb · #fb2836

Contrast

#9ffb28 as textRatioAAAA largeAAAFix
Aaon white
1.29:1failfailfail
  • AA: use #4b8203 as the text (4.67:1)
  • AAA: use #375f02 as the text (7.5:1)
  • AA: or shift the background to #636363 (4.66:1)
  • AAA: or shift the background to #474747 (7.21:1)
Aaon black
16.3:1passpasspassPasses 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 #9ffb28 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 #9ffb28
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 #9ffb28 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/9ffb28-afbea2-4e56df-212d1f-f1f1e9?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