Color

#5bbac8

#5bbac8
hex#5bbac8
rgbrgb(91, 186, 200)
hslhsl(188, 50%, 57%)
oklchoklch(0.737 0.092 208.1)
Closest name: Blue Bobbin (#52b4ca)Relative luminance 0.4151

Tints & shades

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

Harmonies

Complementary

Open in tool →

#c8695b

#5bc8a0 · #5b83c8

#c85bba · #bac85b

Split-complementary

Open in tool →

#c85b83 · #c8a05b

#a05bc8 · #c8695b · #83c85b

Contrast

#5bbac8 as textRatioAAAA largeAAAFix
Aaon white
2.26:1failfailfail
  • AA: use #2f818e as the text (4.51:1)
  • AAA: use #225e67 as the text (7.33:1)
  • AA: or shift the background to #404040 (4.59:1)
  • AAA: or shift the background to #212121 (7.13:1)
Aaon black
9.3:1passpasspassPasses 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 #5bbac8 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

#5bbac8 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5bbac8
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 #5bbac8 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5bbac8-a2b7be-df4e81-1f252d-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