Color

#5bb0d7

#5bb0d7
hex#5bb0d7
rgbrgb(91, 176, 215)
hslhsl(199, 61%, 60%)
oklchoklch(0.719 0.1 230.1)
Closest name: Blue Martini (#52b4d3)Relative luminance 0.3818

Colors that go with #5bb0d7

Charcoal, Dark Salmon 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 →

#d7825b

#5bd7c0 · #5b72d7

#d75bb0 · #b0d75b

Split-complementary

Open in tool →

#d75b72 · #d7c05b

#c05bd7 · #d7825b · #72d75b

Contrast

#5bb0d7 as textRatioAAAA largeAAAFix
Aaon white
2.43:1failfailfail
  • AA: use #287da4 as the text (4.61:1)
  • AAA: use #1e5e7b as the text (7.14:1)
  • AA: or shift the background to #3b3b3b (4.61:1)
  • AAA: or shift the background to #1c1c1c (7.01:1)
Aaon black
8.64:1passpasspassPasses 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 #5bb0d7 as the background.

Brands using this color

Fonts for this mood

#5bb0d7 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5bb0d7
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 #5bb0d7 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5bb0d7-9cb3c4-df4e66-1f232d-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