Color

#52b1ff

#52b1ff
hex#52b1ff
rgbrgb(82, 177, 255)
hslhsl(207, 100%, 66%)
oklchoklch(0.737 0.145 246.3)
Closest name: Cerulean (#55aaee)Relative luminance 0.4046

Colors that go with #52b1ff

Charcoal, Dark Orange and Amber 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 →

#ffa052

#52fff6 · #525aff

#ff52b1 · #b1ff52

Split-complementary

Open in tool →

#ff525a · #fff652

#f652ff · #ffa052 · #5aff52

Contrast

#52b1ff as textRatioAAAA largeAAAFix
Aaon white
2.31:1failfailfail
  • AA: use #0076d6 as the text (4.6:1)
  • AAA: use #005aa3 as the text (7.02:1)
  • AA: or shift the background to #3d3d3d (4.7:1)
  • AAA: or shift the background to #1f1f1f (7.14:1)
Aaon black
9.09:1passpasspassPasses 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 #52b1ff as the background.

Brands using this color

Fonts for this mood

#52b1ff reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #52b1ff
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 #52b1ff and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/52b1ff-9cadc4-df4e53-1f212d-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