Color

#1fa6ef

#1fa6ef
hex#1fa6ef
rgbrgb(31, 166, 239)
hslhsl(201, 87%, 53%)
oklchoklch(0.692 0.151 240)
Closest name: Cerulean (#55aaee)Relative luminance 0.338

Colors that go with #1fa6ef

Charcoal, Medium Sea Green 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 →

#ef681f

#1fefd0 · #1f3eef

#ef1fa6 · #a6ef1f

Split-complementary

Open in tool →

#ef1f3e · #efd01f

#d01fef · #ef681f · #3eef1f

Contrast

#1fa6ef as textRatioAAAA largeAAAFix
Aaon white
2.71:1failfailfail
  • AA: use #0d7dba as the text (4.51:1)
  • AAA: use #0a5d8a as the text (7.13:1)
  • AA: or shift the background to #333333 (4.67:1)
  • AAA: or shift the background to #0f0f0f (7.08:1)
Aaon black
7.76:1passpasspassPasses 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 #1fa6ef as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#1fa6ef reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1fa6ef
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 #1fa6ef and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1fa6ef-9cb1c4-df4e62-1f222d-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