Color

#28f80d

#28f80d
hex#28f80d
rgbrgb(40, 248, 13)
hslhsl(113, 94%, 51%)
oklchoklch(0.851 0.284 142)
Closest name: Cyber Neon Green (#00ff26)Relative luminance 0.6761

Colors that go with #28f80d

Violet, Deep Sky Blue and Hot Pink 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 →

#dc0df8

#9df80d · #0df867

#0d28f8 · #f80d28

Split-complementary

Open in tool →

#670df8 · #f80d9d

#0d9df8 · #dc0df8 · #f8670d

Contrast

#28f80d as textRatioAAAA largeAAAFix
Aaon white
1.45:1failfailfail
  • AA: use #138604 as the text (4.73:1)
  • AAA: use #0e6303 as the text (7.49:1)
  • AA: or shift the background to #5c5c5c (4.62:1)
  • AAA: or shift the background to #404040 (7.17:1)
Aaon black
14.52:1passpasspassPasses 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 #28f80d 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 #28f80d
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 #28f80d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/28f80d-a2bea2-884edf-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