Color

#58b0fd

#58b0fd
hex#58b0fd
rgbrgb(88, 176, 253)
hslhsl(208, 98%, 67%)
oklchoklch(0.736 0.141 247.5)
Closest name: Cerulean (#55aaee)Relative luminance 0.4022

Colors that go with #58b0fd

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 →

#fda558

#58fdf8 · #585efd

#fd58b0 · #b0fd58

Split-complementary

Open in tool →

#fd585e · #fdf858

#f858fd · #fda558 · #5efd58

Contrast

#58b0fd as textRatioAAAA largeAAAFix
Aaon white
2.32:1failfailfail
  • AA: use #0275d9 as the text (4.62:1)
  • AAA: use #0257a2 as the text (7.27:1)
  • AA: or shift the background to #3d3d3d (4.68:1)
  • AAA: or shift the background to #1f1f1f (7.1:1)
Aaon black
9.04:1passpasspassPasses 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 #58b0fd as the background.

Brands using this color

Fonts for this mood

#58b0fd reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #58b0fd
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 #58b0fd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/58b0fd-9cadc4-df4e51-1f212d-e9f1f1?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