Color

#5bb9ab

#5bb9ab
hex#5bb9ab
rgbrgb(91, 185, 171)
hslhsl(171, 40%, 54%)
oklchoklch(0.724 0.092 182.7)
Closest name: Emerald Bliss (#4cbdac)Relative luminance 0.3986

Tints & shades

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

Harmonies

Complementary

Open in tool →

#b95b69

#5bb97c · #5b98b9

#ab5bb9 · #b9ab5b

Split-complementary

Open in tool →

#b95b98 · #b97c5b

#7c5bb9 · #b95b69 · #98b95b

Contrast

#5bb9ab as textRatioAAAA largeAAAFix
Aaon white
2.34:1failfailfail
  • AA: use #378176 as the text (4.6:1)
  • AAA: use #296058 as the text (7.22:1)
  • AA: or shift the background to #3d3d3d (4.64:1)
  • AAA: or shift the background to #1f1f1f (7.04:1)
Aaon black
8.97:1passpasspassPasses 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 #5bb9ab as the background.

Brands using this color

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

mcpConnect your agent — build around #5bb9ab
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 #5bb9ab and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5bb9ab-a2bebd-d459a7-1f292d-e9f1ec?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