Color

#5bf8fb

#5bf8fb
hex#5bf8fb
rgbrgb(91, 248, 251)
hslhsl(181, 95%, 67%)
oklchoklch(0.899 0.13 196.9)
Closest name: Aggressive Aqua (#00fbff)Relative luminance 0.7632

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fb5e5b

#5bfbae · #5ba8fb

#fb5bf8 · #f8fb5b

Split-complementary

Open in tool →

#fb5ba8 · #fbae5b

#ae5bfb · #fb5e5b · #a8fb5b

Contrast

#5bf8fb as textRatioAAAA largeAAAFix
Aaon white
1.29:1failfailfail
  • AA: use #038486 as the text (4.52:1)
  • AAA: use #036263 as the text (7.16:1)
  • AA: or shift the background to #636363 (4.65:1)
  • AAA: or shift the background to #474747 (7.2:1)
Aaon black
16.26:1passpasspassPasses 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 #5bf8fb as the background.

Brands using this color

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

Fonts for this mood

#5bf8fb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5bf8fb
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 #5bf8fb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5bf8fb-a2babe-d45992-1f272d-e9f1ed?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