Color

#5bb2b9

#5bb2b9
hex#5bb2b9
rgbrgb(91, 178, 185)
hslhsl(184, 40%, 54%)
oklchoklch(0.712 0.084 202.4)
Closest name: Blue Bobbin (#52b4ca)Relative luminance 0.3757

Colors that go with #5bb2b9

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 →

#b9615b

#5bb990 · #5b83b9

#b95bb2 · #b2b95b

Split-complementary

Open in tool →

#b95b83 · #b9905b

#905bb9 · #b9615b · #83b95b

Contrast

#5bb2b9 as textRatioAAAA largeAAAFix
Aaon white
2.47:1failfailfail
  • AA: use #397f84 as the text (4.62:1)
  • AAA: use #2b6064 as the text (7.09:1)
  • AA: or shift the background to #3b3b3b (4.54:1)
  • AAA: or shift the background to #1a1a1a (7.06:1)
Aaon black
8.51:1passpasspassPasses 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 #5bb2b9 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

#5bb2b9 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5bb2b9
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 #5bb2b9 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5bb2b9-a2b9be-df4e8a-1f262d-e9f1ee?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