Color

#28df0c

#28df0c
hex#28df0c
rgbrgb(40, 223, 12)
hslhsl(112, 90%, 46%)
oklchoklch(0.786 0.261 141.8)
Closest name: Alarming Slime (#2ce335)Relative luminance 0.5325

Colors that go with #28df0c

Taupe, Violet and Dark Orange 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 →

#c30cdf

#91df0c · #0cdf59

#0c28df · #df0c28

Split-complementary

Open in tool →

#590cdf · #df0c91

#0c91df · #c30cdf · #df590c

Contrast

#28df0c as textRatioAAAA largeAAAFix
Aaon white
1.8:1failfailfail
  • AA: use #188807 as the text (4.6:1)
  • AAA: use #126605 as the text (7.17:1)
  • AA: or shift the background to #4f4f4f (4.54:1)
  • AAA: or shift the background to #333333 (7.01:1)
Aaon black
11.65:1passpasspassPasses 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 #28df0c 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 #28df0c
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 #28df0c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/28df0c-a2bea2-864edf-1f2d23-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