Color

#00b321

#00b321
hex#00b321
rgbrgb(0, 179, 33)
hslhsl(131, 100%, 35%)
oklchoklch(0.665 0.217 143.7)
Closest name: Always Greener Grass (#11aa00)Relative luminance 0.3235

Colors that go with #00b321

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 →

#b30092

#39b300 · #00b37a

#2100b3 · #b32100

Split-complementary

Open in tool →

#7a00b3 · #b30039

#0039b3 · #b30092 · #b37a00

Contrast

#00b321 as textRatioAAAA largeAAAFix
Aaon white
2.81:1failfailfail
  • AA: use #008a19 as the text (4.52:1)
  • AAA: use #006613 as the text (7.22:1)
  • AA: or shift the background to #303030 (4.69:1)
  • AAA: or shift the background to #0a0a0a (7.04:1)
Aaon black
7.47:1passpasspassPasses 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 #00b321 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 #00b321
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 #00b321 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/00b321-a2beaa-b34edf-1f2d28-ecf1e9?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