Color

#5bf5fb

#5bf5fb
hex#5bf5fb
rgbrgb(91, 245, 251)
hslhsl(182, 95%, 67%)
oklchoklch(0.892 0.128 198.8)
Closest name: Aggressive Aqua (#00fbff)Relative luminance 0.7449

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fb605b

#5bfbb0 · #5ba6fb

#fb5bf5 · #f5fb5b

Split-complementary

Open in tool →

#fb5ba6 · #fbb05b

#b05bfb · #fb605b · #a6fb5b

Contrast

#5bf5fb as textRatioAAAA largeAAAFix
Aaon white
1.32:1failfailfail
  • AA: use #038286 as the text (4.62:1)
  • AAA: use #036063 as the text (7.35:1)
  • AA: or shift the background to #636363 (4.55:1)
  • AAA: or shift the background to #474747 (7.03:1)
Aaon black
15.9:1passpasspassPasses 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 #5bf5fb 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

#5bf5fb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5bf5fb
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 #5bf5fb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5bf5fb-a2babe-d45990-1f272d-e9f1ee?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