Color

#03bfbc

#03bfbc
hex#03bfbc
rgbrgb(3, 191, 188)
hslhsl(179, 97%, 38%)
oklchoklch(0.728 0.124 192.8)
Closest name: Emerald Bliss (#4cbdac)Relative luminance 0.4091

Tints & shades

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

Harmonies

Complementary

Open in tool →

#bf0306

#03bf5e · #0364bf

#bc03bf · #bfbc03

Split-complementary

Open in tool →

#bf0364 · #bf5e03

#5e03bf · #bf0306 · #64bf03

Contrast

#03bfbc as textRatioAAAA largeAAAFix
Aaon white
2.29:1failfailfail
  • AA: use #028380 as the text (4.6:1)
  • AAA: use #015f5e as the text (7.5:1)
  • AA: or shift the background to #404040 (4.53:1)
  • AAA: or shift the background to #212121 (7.04:1)
Aaon black
9.18:1passpasspassPasses 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 #03bfbc as the background.

Brands using this color

mcpConnect your agent — build around #03bfbc
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 #03bfbc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/03bfbc-a2bbbe-d45996-1f272d-e9f1ed?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