Color

#5bbde1

#5bbde1
hex#5bbde1
rgbrgb(91, 189, 225)
hslhsl(196, 69%, 62%)
oklchoklch(0.753 0.105 224.9)
Closest name: Blue Martini (#52b4d3)Relative luminance 0.4406

Colors that go with #5bbde1

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 →

#e17f5b

#5be1c2 · #5b7ae1

#e15bbd · #bde15b

Split-complementary

Open in tool →

#e15b7a · #e1c25b

#c25be1 · #e17f5b · #7ae15b

Contrast

#5bbde1 as textRatioAAAA largeAAAFix
Aaon white
2.14:1failfailfail
  • AA: use #1d7d9f as the text (4.68:1)
  • AAA: use #165e79 as the text (7.21:1)
  • AA: or shift the background to #424242 (4.7:1)
  • AAA: or shift the background to #262626 (7.07:1)
Aaon black
9.81:1passpasspassPasses 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 #5bbde1 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#5bbde1 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5bbde1
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 #5bbde1 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5bbde1-9cb5c4-df4e6e-1f232d-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