Color

#40a333

#40a333
hex#40a333
rgbrgb(64, 163, 51)
hslhsl(113, 52%, 42%)
oklchoklch(0.634 0.176 141.4)
Closest name: Fennel Fiasco (#00aa44)Relative luminance 0.2752

Colors that go with #40a333

Charcoal, Blue and Crimson 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 →

#9633a3

#78a333 · #33a35e

#3340a3 · #a33340

Split-complementary

Open in tool →

#5e33a3 · #a33378

#3378a3 · #9633a3 · #a35e33

Contrast

#40a333 as textRatioAAAA largeAAAFix
Aaon white
3.23:1failpassfail
  • AA: use #34842a as the text (4.69:1)
  • AAA: use #286520 as the text (7.06:1)
  • AA: or shift the background to #292929 (4.51:1)
Aaon black
6.5:1passpassfail
  • AAA: use #43ab36 as the text (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #40a333 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 #40a333
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 #40a333 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/40a333-a2bea2-884edf-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