Color

#21bc06

#21bc06
hex#21bc06
rgbrgb(33, 188, 6)
hslhsl(111, 94%, 38%)
oklchoklch(0.692 0.23 141.7)
Closest name: Green Glimmer (#00bb00)Relative luminance 0.363

Colors that go with #21bc06

Taupe, Orchid 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 →

#a106bc

#7cbc06 · #06bc46

#0621bc · #bc0621

Split-complementary

Open in tool →

#4606bc · #bc067c

#067cbc · #a106bc · #bc4606

Contrast

#21bc06 as textRatioAAAA largeAAAFix
Aaon white
2.54:1failfailfail
  • AA: use #188604 as the text (4.72:1)
  • AAA: use #116303 as the text (7.47:1)
  • AA: or shift the background to #383838 (4.61:1)
  • AAA: or shift the background to #171717 (7.05:1)
Aaon black
8.26:1passpasspassPasses 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 #21bc06 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 #21bc06
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 #21bc06 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/21bc06-a3bea2-834edf-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