Color

#5db2ef

#5db2ef
hex#5db2ef
rgbrgb(93, 178, 239)
hslhsl(205, 82%, 65%)
oklchoklch(0.735 0.121 242.1)
Closest name: Cerulean (#55aaee)Relative luminance 0.404

Colors that go with #5db2ef

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 →

#ef9a5d

#5defe3 · #5d69ef

#ef5db2 · #b2ef5d

Split-complementary

Open in tool →

#ef5d69 · #efe35d

#e35def · #ef9a5d · #69ef5d

Contrast

#5db2ef as textRatioAAAA largeAAAFix
Aaon white
2.31:1failfailfail
  • AA: use #137ac3 as the text (4.57:1)
  • AAA: use #0e5a90 as the text (7.28:1)
  • AA: or shift the background to #3d3d3d (4.7:1)
  • AAA: or shift the background to #1f1f1f (7.13:1)
Aaon black
9.08:1passpasspassPasses 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 #5db2ef as the background.

Brands using this color

Fonts for this mood

#5db2ef reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5db2ef
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 #5db2ef and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5db2ef-9cafc4-df4e58-1f212d-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