Color

#42d2d7

#42d2d7
hex#42d2d7
rgbrgb(66, 210, 215)
hslhsl(182, 65%, 55%)
oklchoklch(0.791 0.119 198.4)
Closest name: mediumturquoise (#48d1cc)Relative luminance 0.5216

Colors that go with #42d2d7

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 →

#d74742

#42d791 · #4287d7

#d742d2 · #d2d742

Split-complementary

Open in tool →

#d74287 · #d79142

#9142d7 · #d74742 · #87d742

Contrast

#42d2d7 as textRatioAAAA largeAAAFix
Aaon white
1.84:1failfailfail
  • AA: use #1d8387 as the text (4.52:1)
  • AAA: use #156265 as the text (7.08:1)
  • AA: or shift the background to #4d4d4d (4.6:1)
  • AAA: or shift the background to #303030 (7.18:1)
Aaon black
11.43:1passpasspassPasses 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 #42d2d7 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#42d2d7 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #42d2d7
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 #42d2d7 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/42d2d7-a2babe-d45990-1f272d-e9f1ee?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