Color

#73c440

#73c440
hex#73c440
rgbrgb(115, 196, 64)
hslhsl(97, 53%, 51%)
oklchoklch(0.742 0.184 135.6)
Closest name: Emerald Glitter (#66bb00)Relative luminance 0.4349

Colors that go with #73c440

Blue, Charcoal 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 →

#9240c4

#b5c440 · #40c44f

#4073c4 · #c44073

Split-complementary

Open in tool →

#4f40c4 · #c440b5

#40b5c4 · #9240c4 · #c44f40

Contrast

#73c440 as textRatioAAAA largeAAAFix
Aaon white
2.17:1failfailfail
  • AA: use #4a8128 as the text (4.71:1)
  • AAA: use #38621e as the text (7.16:1)
  • AA: or shift the background to #424242 (4.64:1)
  • AAA: or shift the background to #242424 (7.17:1)
Aaon black
9.7:1passpasspassPasses 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 #73c440 as the background.

Brands using this color

Palettes built around it

mcpConnect your agent — build around #73c440
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 #73c440 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/73c440-a9bea2-624edf-1f2d20-f0f1e9?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