Color

#5bbcf1

#5bbcf1
hex#5bbcf1
rgbrgb(91, 188, 241)
hslhsl(201, 84%, 65%)
oklchoklch(0.758 0.119 235.3)
Closest name: Blue Mana (#68c2f5)Relative luminance 0.4454

Colors that go with #5bbcf1

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 →

#f18f5b

#5bf1da · #5b71f1

#f15bbc · #bcf15b

Split-complementary

Open in tool →

#f15b71 · #f1da5b

#da5bf1 · #f18f5b · #71f15b

Contrast

#5bbcf1 as textRatioAAAA largeAAAFix
Aaon white
2.12:1failfailfail
  • AA: use #107db7 as the text (4.53:1)
  • AAA: use #0c5d88 as the text (7.15:1)
  • AA: or shift the background to #454545 (4.52:1)
  • AAA: or shift the background to #262626 (7.14:1)
Aaon black
9.91:1passpasspassPasses 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 #5bbcf1 as the background.

Brands using this color

Fonts for this mood

#5bbcf1 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5bbcf1
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 #5bbcf1 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5bbcf1-9cb1c4-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