Color

#10a221

#10a221
hex#10a221
rgbrgb(16, 162, 33)
hslhsl(127, 82%, 35%)
oklchoklch(0.619 0.198 143.6)
Closest name: Grass Is Greener (#3f9b0b)Relative luminance 0.2606

Colors that go with #10a221

Blue, Dodger Blue and Royal Blue 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 →

#a21091

#48a210 · #10a26a

#2110a2 · #a22110

Split-complementary

Open in tool →

#6a10a2 · #a21048

#1048a2 · #a21091 · #a26a10

Contrast

#10a221 as textRatioAAAA largeAAAFix
Aaon white
3.38:1failpassfail
  • AA: use #0d871b as the text (4.67:1)
  • AAA: use #0a6615 as the text (7.18:1)
  • AA: or shift the background to #242424 (4.59:1)
Aaon black
6.21:1passpassfail
  • AAA: use #11b024 as the text (7.26:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #10a221 as the background.

Brands using this color

mcpConnect your agent — build around #10a221
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 #10a221 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/10a221-a2bea8-aa4edf-1f2d27-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