Color

#59b5cf

#59b5cf
hex#59b5cf
rgbrgb(89, 181, 207)
hslhsl(193, 55%, 58%)
oklchoklch(0.727 0.095 218.9)
Closest name: Blue Martini (#52b4d3)Relative luminance 0.3968

Colors that go with #59b5cf

Charcoal, Dark Salmon 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 →

#cf7359

#59cfad · #597acf

#cf59b5 · #b5cf59

Split-complementary

Open in tool →

#cf597a · #cfad59

#ad59cf · #cf7359 · #7acf59

Contrast

#59b5cf as textRatioAAAA largeAAAFix
Aaon white
2.35:1failfailfail
  • AA: use #2c7f96 as the text (4.58:1)
  • AAA: use #205e6f as the text (7.26:1)
  • AA: or shift the background to #3d3d3d (4.62:1)
  • AAA: or shift the background to #1f1f1f (7.01:1)
Aaon black
8.94:1passpasspassPasses 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 #59b5cf 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

#59b5cf reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #59b5cf
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 #59b5cf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/59b5cf-a2b5be-df4e75-1f242d-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