Color

#58b9ca

#58b9ca
hex#58b9ca
rgbrgb(88, 185, 202)
hslhsl(189, 52%, 57%)
oklchoklch(0.734 0.094 210.6)
Closest name: Blue Bobbin (#52b4ca)Relative luminance 0.4104

Colors that go with #58b9ca

Charcoal, Dark Salmon and Blue 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 →

#ca6958

#58caa2 · #5880ca

#ca58b9 · #b9ca58

Split-complementary

Open in tool →

#ca5880 · #caa258

#a258ca · #ca6958 · #80ca58

Contrast

#58b9ca as textRatioAAAA largeAAAFix
Aaon white
2.28:1failfailfail
  • AA: use #2d818f as the text (4.52:1)
  • AAA: use #22616d as the text (7:1)
  • AA: or shift the background to #404040 (4.55:1)
  • AAA: or shift the background to #212121 (7.06:1)
Aaon black
9.21:1passpasspassPasses 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 #58b9ca 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

#58b9ca reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #58b9ca
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 #58b9ca and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/58b9ca-a2b7be-df4e7e-1f252d-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