Color

#28fb67

#28fb67
hex#28fb67
rgbrgb(40, 251, 103)
hslhsl(138, 96%, 57%)
oklchoklch(0.864 0.246 147.3)
Closest name: Cathode Green (#00ff55)Relative luminance 0.7042

Colors that go with #28fb67

Violet, Hot Pink and Plum 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 →

#fb28bb

#52fb28 · #28fbd1

#6728fb · #fb6728

Split-complementary

Open in tool →

#d128fb · #fb2852

#2852fb · #fb28bb · #fbd128

Contrast

#28fb67 as textRatioAAAA largeAAAFix
Aaon white
1.39:1failfailfail
  • AA: use #03872a as the text (4.66:1)
  • AAA: use #02641f as the text (7.38:1)
  • AA: or shift the background to #5e5e5e (4.66:1)
  • AAA: or shift the background to #424242 (7.22:1)
Aaon black
15.08:1passpasspassPasses 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 #28fb67 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 #28fb67
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 #28fb67 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/28fb67-a2beae-be59d4-1f2d29-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