Color

#5bd3fb

#5bd3fb
hex#5bd3fb
rgbrgb(91, 211, 251)
hslhsl(195, 95%, 67%)
oklchoklch(0.814 0.12 223.3)
Closest name: lightskyblue (#87cefa)Relative luminance 0.5578

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fb835b

#5bfbd3 · #5b83fb

#fb5bd3 · #d3fb5b

Split-complementary

Open in tool →

#fb5b83 · #fbd35b

#d35bfb · #fb835b · #83fb5b

Contrast

#5bd3fb as textRatioAAAA largeAAAFix
Aaon white
1.73:1failfailfail
  • AA: use #0480a9 as the text (4.5:1)
  • AAA: use #035e7c as the text (7.25:1)
  • AA: or shift the background to #525252 (4.52:1)
  • AAA: or shift the background to #333333 (7.31:1)
Aaon black
12.16:1passpasspassPasses 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 #5bd3fb as the background.

Brands using this color

Fonts for this mood

#5bd3fb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5bd3fb
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 #5bd3fb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5bd3fb-9cb5c4-df4e70-1f242d-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