Color

#3f8a97

#3f8a97
hex#3f8a97
rgbrgb(63, 138, 151)
hslhsl(189, 41%, 42%)
oklchoklch(0.591 0.076 210.4)
Closest name: Blue Moon (#3992a8)Relative luminance 0.2147

Tints & shades

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

Harmonies

Complementary

Open in tool →

#974c3f

#3f9778 · #3f5e97

#973f8a · #8a973f

Split-complementary

Open in tool →

#973f5e · #97783f

#783f97 · #974c3f · #5e973f

Contrast

#3f8a97 as textRatioAAAA largeAAAFix
Aaon white
3.97:1failpassfail
  • AA: use #3b808c as the text (4.51:1)
  • AAA: use #2c5f68 as the text (7.13:1)
  • AA: or shift the background to #171717 (4.52:1)
Aaon black
5.29:1passpassfail
  • AAA: use #4aa1b0 as the text (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3f8a97 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

#3f8a97 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3f8a97
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 #3f8a97 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3f8a97-a2b7be-df4e7e-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