Color

#42bee0

#42bee0
hex#42bee0
rgbrgb(66, 190, 224)
hslhsl(193, 72%, 57%)
oklchoklch(0.748 0.117 220)
Closest name: Blue Martini (#52b4d3)Relative luminance 0.4337

Colors that go with #42bee0

Charcoal, Dark Salmon and Denim 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 →

#e06542

#42e0b4 · #426fe0

#e042be · #bee042

Split-complementary

Open in tool →

#e0426f · #e0b442

#b442e0 · #e06542 · #6fe042

Contrast

#42bee0 as textRatioAAAA largeAAAFix
Aaon white
2.17:1failfailfail
  • AA: use #197e9a as the text (4.67:1)
  • AAA: use #136176 as the text (7:1)
  • AA: or shift the background to #424242 (4.63:1)
  • AAA: or shift the background to #242424 (7.15:1)
Aaon black
9.67:1passpasspassPasses 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 #42bee0 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

#42bee0 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #42bee0
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 #42bee0 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/42bee0-a2b5be-df4e75-1f242d-e9f1ef?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