Color

#52b4ff

#52b4ff
hex#52b4ff
rgbrgb(82, 180, 255)
hslhsl(206, 100%, 66%)
oklchoklch(0.744 0.142 244.6)
Closest name: Cerulean (#55aaee)Relative luminance 0.4166

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ff9d52

#52fff3 · #525dff

#ff52b4 · #b4ff52

Split-complementary

Open in tool →

#ff525d · #fff352

#f352ff · #ff9d52 · #5dff52

Contrast

#52b4ff as textRatioAAAA largeAAAFix
Aaon white
2.25:1failfailfail
  • AA: use #0076d1 as the text (4.65:1)
  • AAA: use #005a9e as the text (7.1:1)
  • AA: or shift the background to #404040 (4.61:1)
  • AAA: or shift the background to #212121 (7.15:1)
Aaon black
9.33:1passpasspassPasses 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 #52b4ff as the background.

Brands using this color

Fonts for this mood

#52b4ff reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #52b4ff
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 #52b4ff and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/52b4ff-9caec4-df4e56-1f212d-e9f1f1?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