Color

#5bbfe6

#5bbfe6
hex#5bbfe6
rgbrgb(91, 191, 230)
hslhsl(197, 74%, 63%)
oklchoklch(0.76 0.108 226.5)
Closest name: Blue Mana (#68c2f5)Relative luminance 0.452

Tints & shades

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

Harmonies

Complementary

Open in tool →

#e6825b

#5be6c8 · #5b79e6

#e65bbf · #bfe65b

Split-complementary

Open in tool →

#e65b79 · #e6c85b

#c85be6 · #e6825b · #79e65b

Contrast

#5bbfe6 as textRatioAAAA largeAAAFix
Aaon white
2.09:1failfailfail
  • AA: use #197da4 as the text (4.66:1)
  • AAA: use #135e7c as the text (7.19:1)
  • AA: or shift the background to #454545 (4.58:1)
  • AAA: or shift the background to #262626 (7.24:1)
Aaon black
10.04:1passpasspassPasses 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 #5bbfe6 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

#5bbfe6 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5bbfe6
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 #5bbfe6 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5bbfe6-9cb4c4-df4e6b-1f232d-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