Color

#1bbdfe

#1bbdfe
hex#1bbdfe
rgbrgb(27, 189, 254)
hslhsl(197, 99%, 55%)
oklchoklch(0.752 0.151 233.1)
Closest name: deepskyblue (#00bfff)Relative luminance 0.4378

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fe5b1b

#1bfecd · #1b4cfe

#fe1bbd · #bdfe1b

Split-complementary

Open in tool →

#fe1b4c · #fecd1b

#cd1bfe · #fe5b1b · #4cfe1b

Contrast

#1bbdfe as textRatioAAAA largeAAAFix
Aaon white
2.15:1failfailfail
  • AA: use #017cad as the text (4.68:1)
  • AAA: use #015f84 as the text (7.07:1)
  • AA: or shift the background to #424242 (4.67:1)
  • AAA: or shift the background to #262626 (7.03:1)
Aaon black
9.76:1passpasspassPasses 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 #1bbdfe as the background.

Brands using this color

Palettes built around it

Fonts for this mood

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

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

tool url/palettes/new/1bbdfe-9cb4c4-df4e6b-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