Color

#21b314

#21b314
hex#21b314
rgbrgb(33, 179, 20)
hslhsl(115, 80%, 39%)
oklchoklch(0.668 0.218 142.1)
Closest name: Green Glimmer (#00bb00)Relative luminance 0.3261

Colors that go with #21b314

Taupe, Fuchsia and Medium Purple 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 →

#a614b3

#71b314 · #14b356

#1421b3 · #b31421

Split-complementary

Open in tool →

#5614b3 · #b31471

#1471b3 · #a614b3 · #b35614

Contrast

#21b314 as textRatioAAAA largeAAAFix
Aaon white
2.79:1failfailfail
  • AA: use #19850f as the text (4.77:1)
  • AAA: use #13650b as the text (7.26:1)
  • AA: or shift the background to #333333 (4.53:1)
  • AAA: or shift the background to #0a0a0a (7.09:1)
Aaon black
7.52:1passpasspassPasses 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 #21b314 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 #21b314
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 #21b314 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/21b314-a2bea3-8d4edf-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