Color

#5bb4d7

#5bb4d7
hex#5bb4d7
rgbrgb(91, 180, 215)
hslhsl(197, 61%, 60%)
oklchoklch(0.729 0.099 226.3)
Closest name: Blue Martini (#52b4d3)Relative luminance 0.3977

Colors that go with #5bb4d7

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 →

#d77e5b

#5bd7bc · #5b76d7

#d75bb4 · #b4d75b

Split-complementary

Open in tool →

#d75b76 · #d7bc5b

#bc5bd7 · #d77e5b · #76d75b

Contrast

#5bb4d7 as textRatioAAAA largeAAAFix
Aaon white
2.35:1failfailfail
  • AA: use #277ea0 as the text (4.59:1)
  • AAA: use #1d5d77 as the text (7.28:1)
  • AA: or shift the background to #3d3d3d (4.63:1)
  • AAA: or shift the background to #1f1f1f (7.03:1)
Aaon black
8.95:1passpasspassPasses 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 #5bb4d7 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

#5bb4d7 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5bb4d7
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 #5bb4d7 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5bb4d7-9cb4c4-df4e6b-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