Color

#3fa6ab

#3fa6ab
hex#3fa6ab
rgbrgb(63, 166, 171)
hslhsl(183, 46%, 46%)
oklchoklch(0.668 0.094 199.7)
Closest name: Atlas Cedar (#5ca0a7)Relative luminance 0.3127

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ab453f

#3fab7b · #3f70ab

#ab3fa6 · #a6ab3f

Split-complementary

Open in tool →

#ab3f70 · #ab7b3f

#7b3fab · #ab453f · #70ab3f

Contrast

#3fa6ab as textRatioAAAA largeAAAFix
Aaon white
2.89:1failfailfail
  • AA: use #307e82 as the text (4.74:1)
  • AAA: use #256165 as the text (7.06:1)
  • AA: or shift the background to #303030 (4.56:1)
  • AAA: or shift the background to #050505 (7.04:1)
Aaon black
7.25:1passpasspassPasses 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 #3fa6ab 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

#3fa6ab reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3fa6ab
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 #3fa6ab and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3fa6ab-a2b9be-d4598e-1f262d-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