Color

#42bc20

#42bc20
hex#42bc20
rgbrgb(66, 188, 32)
hslhsl(107, 71%, 43%)
oklchoklch(0.7 0.214 140.2)
Closest name: Frog (#58bc08)Relative luminance 0.3723

Colors that go with #42bc20

Charcoal, Royal 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 →

#9a20bc

#8fbc20 · #20bc4c

#2042bc · #bc2042

Split-complementary

Open in tool →

#4c20bc · #bc208f

#208fbc · #9a20bc · #bc4c20

Contrast

#42bc20 as textRatioAAAA largeAAAFix
Aaon white
2.49:1failfailfail
  • AA: use #2f8717 as the text (4.57:1)
  • AAA: use #236411 as the text (7.24:1)
  • AA: or shift the background to #3b3b3b (4.51:1)
  • AAA: or shift the background to #171717 (7.21:1)
Aaon black
8.45:1passpasspassPasses 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 #42bc20 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 #42bc20
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 #42bc20 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/42bc20-a5bea2-7a4edf-1f2d22-eff1e9?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