Color

#05b4ff

#05b4ff
hex#05b4ff
rgbrgb(5, 180, 255)
hslhsl(198, 100%, 51%)
oklchoklch(0.73 0.16 237.5)
Closest name: deepskyblue (#00bfff)Relative luminance 0.3989

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ff5005

#05ffcd · #0537ff

#ff05b4 · #b4ff05

Split-complementary

Open in tool →

#ff0537 · #ffcd05

#cd05ff · #ff5005 · #37ff05

Contrast

#05b4ff as textRatioAAAA largeAAAFix
Aaon white
2.34:1failfailfail
  • AA: use #007db3 as the text (4.58:1)
  • AAA: use #005d85 as the text (7.23:1)
  • AA: or shift the background to #3d3d3d (4.64:1)
  • AAA: or shift the background to #1f1f1f (7.05:1)
Aaon black
8.98:1passpasspassPasses 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 #05b4ff as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

Fonts for this mood

#05b4ff reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #05b4ff
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 #05b4ff and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/05b4ff-9cb3c4-df4e69-1f232d-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