Color

#42d7bb

#42d7bb
hex#42d7bb
rgbrgb(66, 215, 187)
hslhsl(169, 65%, 55%)
oklchoklch(0.795 0.13 177.4)
Closest name: Ice Climber (#25e2cd)Relative luminance 0.5335

Colors that go with #42d7bb

Charcoal, Crimson and Deep Sky 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 →

#d7425d

#42d771 · #42a8d7

#bb42d7 · #d7bb42

Split-complementary

Open in tool →

#d742a8 · #d77142

#7142d7 · #d7425d · #a8d742

Contrast

#42d7bb as textRatioAAAA largeAAAFix
Aaon white
1.8:1failfailfail
  • AA: use #1c8270 as the text (4.69:1)
  • AAA: use #156153 as the text (7.33:1)
  • AA: or shift the background to #4f4f4f (4.55:1)
  • AAA: or shift the background to #333333 (7.02:1)
Aaon black
11.67:1passpasspassPasses 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 #42d7bb 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 #42d7bb
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 #42d7bb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/42d7bb-a2bebc-d459ab-1f2a2d-e9f1ec?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