Color

#66a003

#66a003
hex#66a003
rgbrgb(102, 160, 3)
hslhsl(82, 96%, 32%)
oklchoklch(0.641 0.174 130.7)
Closest name: Botanical Garden (#44aa11)Relative luminance 0.2797

Colors that go with #66a003

Blue, Dodger Blue and Taupe 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 →

#3d03a0

#a08b03 · #18a003

#0366a0 · #a00366

Split-complementary

Open in tool →

#0318a0 · #8b03a0

#03a08b · #3d03a0 · #a00318

Contrast

#66a003 as textRatioAAAA largeAAAFix
Aaon white
3.18:1failpassfail
  • AA: use #538203 as the text (4.6:1)
  • AAA: use #3d5f02 as the text (7.4:1)
  • AA: or shift the background to #292929 (4.57:1)
Aaon black
6.59:1passpassfail
  • AAA: use #6daa03 as the text (7.4:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #66a003 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 #66a003
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 #66a003 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/66a003-b0bea2-4e5fdf-222d1f-f1f0e9?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