Color

#4bb0e7

#4bb0e7
hex#4bb0e7
rgbrgb(75, 176, 231)
hslhsl(201, 76%, 60%)
oklchoklch(0.721 0.123 236)
Closest name: Cerulean (#55aaee)Relative luminance 0.3832

Colors that go with #4bb0e7

Charcoal, Peru 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 →

#e7824b

#4be7cf · #4b63e7

#e74bb0 · #b0e74b

Split-complementary

Open in tool →

#e74b63 · #e7cf4b

#cf4be7 · #e7824b · #63e74b

Contrast

#4bb0e7 as textRatioAAAA largeAAAFix
Aaon white
2.42:1failfailfail
  • AA: use #187db4 as the text (4.53:1)
  • AAA: use #125e87 as the text (7.05:1)
  • AA: or shift the background to #3b3b3b (4.62:1)
  • AAA: or shift the background to #1c1c1c (7.03:1)
Aaon black
8.66:1passpasspassPasses 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 #4bb0e7 as the background.

Brands using this color

Fonts for this mood

#4bb0e7 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4bb0e7
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 #4bb0e7 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4bb0e7-9cb1c4-df4e62-1f222d-e9f1f0?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