Color

#28bc0b

#28bc0b
hex#28bc0b
rgbrgb(40, 188, 11)
hslhsl(110, 89%, 39%)
oklchoklch(0.693 0.227 141.5)
Closest name: Green Glimmer (#00bb00)Relative luminance 0.3644

Colors that go with #28bc0b

Royal Blue, Taupe and Orchid 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 →

#9e0bbc

#81bc0b · #0bbc46

#0b28bc · #bc0b28

Split-complementary

Open in tool →

#460bbc · #bc0b81

#0b81bc · #9e0bbc · #bc460b

Contrast

#28bc0b as textRatioAAAA largeAAAFix
Aaon white
2.53:1failfailfail
  • AA: use #1d8708 as the text (4.64:1)
  • AAA: use #166506 as the text (7.25:1)
  • AA: or shift the background to #383838 (4.63:1)
  • AAA: or shift the background to #171717 (7.08:1)
Aaon black
8.29:1passpasspassPasses 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 #28bc0b 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 #28bc0b
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 #28bc0b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/28bc0b-a3bea2-814edf-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