Color

#1db5fc

#1db5fc
hex#1db5fc
rgbrgb(29, 181, 252)
hslhsl(199, 97%, 55%)
oklchoklch(0.733 0.154 236.7)
Closest name: deepskyblue (#00bfff)Relative luminance 0.4034

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fc631d

#1dfcd3 · #1d46fc

#fc1db5 · #b5fc1d

Split-complementary

Open in tool →

#fc1d46 · #fcd31d

#d31dfc · #fc631d · #46fc1d

Contrast

#1db5fc as textRatioAAAA largeAAAFix
Aaon white
2.32:1failfailfail
  • AA: use #037cb5 as the text (4.61:1)
  • AAA: use #025d88 as the text (7.18:1)
  • AA: or shift the background to #3d3d3d (4.69:1)
  • AAA: or shift the background to #1f1f1f (7.12:1)
Aaon black
9.07:1passpasspassPasses 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 #1db5fc as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#1db5fc reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1db5fc
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 #1db5fc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1db5fc-9cb3c4-df4e66-1f232d-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