Color

#42ebb3

#42ebb3
hex#42ebb3
rgbrgb(66, 235, 179)
hslhsl(160, 81%, 59%)
oklchoklch(0.841 0.158 165.9)
Closest name: Aquamarine (#2ee8bb)Relative luminance 0.6383

Colors that go with #42ebb3

Charcoal, Taupe and Hot Pink 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 →

#eb427a

#42eb5e · #42cfeb

#b342eb · #ebb342

Split-complementary

Open in tool →

#eb42cf · #eb5e42

#5e42eb · #eb427a · #cfeb42

Contrast

#42ebb3 as textRatioAAAA largeAAAFix
Aaon white
1.53:1failfailfail
  • AA: use #0e865e as the text (4.57:1)
  • AAA: use #0a6144 as the text (7.48:1)
  • AA: or shift the background to #595959 (4.59:1)
  • AAA: or shift the background to #3d3d3d (7.12:1)
Aaon black
13.77:1passpasspassPasses 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 #42ebb3 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 #42ebb3
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 #42ebb3 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/42ebb3-a2beb8-d459be-1f2c2d-e9f1eb?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