Color

#03cecb

#03cecb
hex#03cecb
rgbrgb(3, 206, 203)
hslhsl(179, 97%, 41%)
oklchoklch(0.77 0.132 192.9)
Closest name: darkturquoise (#00ced1)Relative luminance 0.4847

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ce0307

#03ce65 · #036cce

#cb03ce · #cecb03

Split-complementary

Open in tool →

#ce036c · #ce6503

#6503ce · #ce0307 · #6cce03

Contrast

#03cecb as textRatioAAAA largeAAAFix
Aaon white
1.96:1failfailfail
  • AA: use #028380 as the text (4.6:1)
  • AAA: use #015f5e as the text (7.5:1)
  • AA: or shift the background to #4a4a4a (4.51:1)
  • AAA: or shift the background to #2b2b2b (7.21:1)
Aaon black
10.69:1passpasspassPasses 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 #03cecb as the background.

Brands using this color

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

Palettes built around it

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

tool url/palettes/new/03cecb-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