Color

#42e0d8

#42e0d8
hex#42e0d8
rgbrgb(66, 224, 216)
hslhsl(177, 72%, 57%)
oklchoklch(0.825 0.128 189.9)
Closest name: turquoise (#40e0d0)Relative luminance 0.5943

Colors that go with #42e0d8

Charcoal, Light Coral and Crimson 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 →

#e0424a

#42e089 · #4299e0

#d842e0 · #e0d842

Split-complementary

Open in tool →

#e04299 · #e08942

#8942e0 · #e0424a · #99e042

Contrast

#42e0d8 as textRatioAAAA largeAAAFix
Aaon white
1.63:1failfailfail
  • AA: use #15847e as the text (4.53:1)
  • AAA: use #10605c as the text (7.37:1)
  • AA: or shift the background to #545454 (4.65:1)
  • AAA: or shift the background to #383838 (7.19:1)
Aaon black
12.89:1passpasspassPasses 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 #42e0d8 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 #42e0d8
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 #42e0d8 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/42e0d8-a2bcbe-d4599b-1f282d-e9f1ed?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