Color

#48b5cb

#48b5cb
hex#48b5cb
rgbrgb(72, 181, 203)
hslhsl(190, 56%, 54%)
oklchoklch(0.719 0.103 213.4)
Closest name: Blue Bobbin (#52b4ca)Relative luminance 0.3874

Colors that go with #48b5cb

Charcoal, Blue and Crimson 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 →

#cb5e48

#48cba0 · #4874cb

#cb48b5 · #b5cb48

Split-complementary

Open in tool →

#cb4874 · #cba048

#a048cb · #cb5e48 · #74cb48

Contrast

#48b5cb as textRatioAAAA largeAAAFix
Aaon white
2.4:1failfailfail
  • AA: use #287e8f as the text (4.7:1)
  • AAA: use #1e5f6b as the text (7.23:1)
  • AA: or shift the background to #3d3d3d (4.52:1)
  • AAA: or shift the background to #1c1c1c (7.1:1)
Aaon black
8.75:1passpasspassPasses 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 #48b5cb as the background.

Brands using this color

Fonts for this mood

#48b5cb reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #48b5cb
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 #48b5cb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/48b5cb-a2b6be-df4e7c-1f252d-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