Color

#42beeb

#42beeb
hex#42beeb
rgbrgb(66, 190, 235)
hslhsl(196, 81%, 59%)
oklchoklch(0.752 0.124 226.5)
Closest name: Blue Bikini (#00bbee)Relative luminance 0.4398

Tints & shades

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

Harmonies

Complementary

Open in tool →

#eb6f42

#42ebc4 · #4269eb

#eb42be · #beeb42

Split-complementary

Open in tool →

#eb4269 · #ebc442

#c442eb · #eb6f42 · #69eb42

Contrast

#42beeb as textRatioAAAA largeAAAFix
Aaon white
2.14:1failfailfail
  • AA: use #117fa6 as the text (4.56:1)
  • AAA: use #0d5f7d as the text (7.12:1)
  • AA: or shift the background to #424242 (4.69:1)
  • AAA: or shift the background to #262626 (7.06:1)
Aaon black
9.8:1passpasspassPasses 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 #42beeb 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

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

mcpConnect your agent — build around #42beeb
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #42beeb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/42beeb-9cb5c4-df4e6e-1f232d-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