Color

#42a013

#42a013
hex#42a013
rgbrgb(66, 160, 19)
hslhsl(100, 79%, 35%)
oklchoklch(0.624 0.188 138.4)
Closest name: Grass Is Greener (#3f9b0b)Relative luminance 0.2635

Colors that go with #42a013

Charcoal, Crimson and 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 →

#7113a0

#88a013 · #13a02a

#1342a0 · #a01342

Split-complementary

Open in tool →

#2a13a0 · #a01388

#1388a0 · #7113a0 · #a02a13

Contrast

#42a013 as textRatioAAAA largeAAAFix
Aaon white
3.35:1failpassfail
  • AA: use #368410 as the text (4.7:1)
  • AAA: use #29640c as the text (7.19:1)
  • AA: or shift the background to #262626 (4.52:1)
Aaon black
6.27:1passpassfail
  • AAA: use #47ad14 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 #42a013 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 #42a013
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 #42a013 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/42a013-a8bea2-694edf-1f2d21-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