Color

#58b2e9

#58b2e9
hex#58b2e9
rgbrgb(88, 178, 233)
hslhsl(203, 77%, 63%)
oklchoklch(0.731 0.117 238.1)
Closest name: Cerulean (#55aaee)Relative luminance 0.398

Colors that go with #58b2e9

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 →

#e99058

#58e9d8 · #5869e9

#e958b2 · #b2e958

Split-complementary

Open in tool →

#e95869 · #e9d858

#d858e9 · #e99058 · #69e958

Contrast

#58b2e9 as textRatioAAAA largeAAAFix
Aaon white
2.34:1failfailfail
  • AA: use #187bb9 as the text (4.59:1)
  • AAA: use #125d8c as the text (7.07:1)
  • AA: or shift the background to #3d3d3d (4.63:1)
  • AAA: or shift the background to #1f1f1f (7.03:1)
Aaon black
8.96:1passpasspassPasses 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 #58b2e9 as the background.

Brands using this color

Fonts for this mood

#58b2e9 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #58b2e9
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 #58b2e9 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/58b2e9-9cb0c4-df4e5d-1f222d-e9f1f0?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