Color

#3aa1bb

#3aa1bb
hex#3aa1bb
rgbrgb(58, 161, 187)
hslhsl(192, 53%, 48%)
oklchoklch(0.661 0.1 217.9)
Closest name: Blue Ocean (#009dc4)Relative luminance 0.2998

Tints & shades

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

Harmonies

Complementary

Open in tool →

#bb533a

#3abb94 · #3a60bb

#bb3aa1 · #a1bb3a

Split-complementary

Open in tool →

#bb3a60 · #bb943a

#943abb · #bb533a · #60bb3a

Contrast

#3aa1bb as textRatioAAAA largeAAAFix
Aaon white
3:1failpassfail
  • AA: use #2e8094 as the text (4.53:1)
  • AAA: use #225e6d as the text (7.27:1)
  • AA: or shift the background to #2e2e2e (4.52:1)
Aaon black
7:1passpassfail
  • AAA: use #3ba5bf as the text (7.32:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3aa1bb 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

#3aa1bb reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3aa1bb
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 #3aa1bb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3aa1bb-a2b5be-df4e77-1f242d-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