Color

#42ccfa

#42ccfa
hex#42ccfa
rgbrgb(66, 204, 250)
hslhsl(195, 95%, 62%)
oklchoklch(0.791 0.132 224.9)
Closest name: Blue Mana (#68c2f5)Relative luminance 0.5125

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fa7042

#42facc · #4270fa

#fa42cc · #ccfa42

Split-complementary

Open in tool →

#fa4270 · #facc42

#cc42fa · #fa7042 · #70fa42

Contrast

#42ccfa as textRatioAAAA largeAAAFix
Aaon white
1.87:1failfailfail
  • AA: use #0480a9 as the text (4.5:1)
  • AAA: use #035e7c as the text (7.25:1)
  • AA: or shift the background to #4d4d4d (4.53:1)
  • AAA: or shift the background to #303030 (7.07:1)
Aaon black
11.25:1passpasspassPasses 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 #42ccfa as the background.

Brands using this color

Fonts for this mood

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

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

tool url/palettes/new/42ccfa-9cb5c4-df4e70-1f242d-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