Color

#1bbdf8

#1bbdf8
hex#1bbdf8
rgbrgb(27, 189, 248)
hslhsl(196, 94%, 54%)
oklchoklch(0.749 0.146 230.5)
Closest name: deepskyblue (#00bfff)Relative luminance 0.4341

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#f8561b

#1bf8c5 · #1b4ff8

#f81bbd · #bdf81b

Split-complementary

Open in tool →

#f81b4f · #f8c51b

#c51bf8 · #f8561b · #4ff81b

Contrast

#1bbdf8 as textRatioAAAA largeAAAFix
Aaon white
2.17:1failfailfail
  • AA: use #057da8 as the text (4.66:1)
  • AAA: use #045f81 as the text (7.1:1)
  • AA: or shift the background to #424242 (4.63:1)
  • AAA: or shift the background to #242424 (7.16:1)
Aaon black
9.68:1passpasspassPasses 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 #1bbdf8 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#1bbdf8 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1bbdf8
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #1bbdf8 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1bbdf8-9cb5c4-df4e6e-1f232d-e9f1ef?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