Color

#42a994

#42a994
hex#42a994
rgbrgb(66, 169, 148)
hslhsl(168, 44%, 46%)
oklchoklch(0.669 0.1 177.3)
Closest name: Hole in One (#4aae97)Relative luminance 0.3167

Colors that go with #42a994

Charcoal, Hot Pink and Burlywood 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.

Real palettes that use #42a994

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#a94256

#42a961 · #428aa9

#9442a9 · #a99442

Split-complementary

Open in tool →

#a9428a · #a96142

#6142a9 · #a94256 · #8aa942

Contrast

#42a994 as textRatioAAAA largeAAAFix
Aaon white
2.86:1failfailfail
  • AA: use #328171 as the text (4.65:1)
  • AAA: use #255f54 as the text (7.39:1)
  • AA: or shift the background to #303030 (4.61:1)
  • AAA: or shift the background to #050505 (7.12:1)
Aaon black
7.33:1passpasspassPasses 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 #42a994 as the background.

Brands using this color

mcpConnect your agent — build around #42a994
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 #42a994 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/42a994-a2bebc-d459ad-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