Color

#1fb0ff

#1fb0ff
hex#1fb0ff
rgbrgb(31, 176, 255)
hslhsl(201, 100%, 56%)
oklchoklch(0.723 0.16 240.5)
Closest name: Cerulean (#55aaee)Relative luminance 0.3856

Colors that go with #1fb0ff

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 →

#ff6d1f

#1fffdd · #1f40ff

#ff1fb0 · #b0ff1f

Split-complementary

Open in tool →

#ff1f40 · #ffdd1f

#dd1fff · #ff6d1f · #40ff1f

Contrast

#1fb0ff as textRatioAAAA largeAAAFix
Aaon white
2.41:1failfailfail
  • AA: use #007bbd as the text (4.6:1)
  • AAA: use #005d8f as the text (7.09:1)
  • AA: or shift the background to #3d3d3d (4.51:1)
  • AAA: or shift the background to #1c1c1c (7.07:1)
Aaon black
8.71:1passpasspassPasses 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 #1fb0ff as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#1fb0ff reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1fb0ff
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 #1fb0ff and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1fb0ff-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