Color

#63cdcf

#63cdcf
hex#63cdcf
rgbrgb(99, 205, 207)
hslhsl(181, 53%, 60%)
oklchoklch(0.787 0.098 197)
Closest name: Hidden Sea Glass (#6fd1c9)Relative luminance 0.5082

Tints & shades

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

Harmonies

Complementary

Open in tool →

#cf6563

#63cf9b · #6397cf

#cf63cd · #cdcf63

Split-complementary

Open in tool →

#cf6397 · #cf9b63

#9b63cf · #cf6563 · #97cf63

Contrast

#63cdcf as textRatioAAAA largeAAAFix
Aaon white
1.88:1failfailfail
  • AA: use #287f81 as the text (4.73:1)
  • AAA: use #1e6062 as the text (7.23:1)
  • AA: or shift the background to #4a4a4a (4.71:1)
  • AAA: or shift the background to #303030 (7.02:1)
Aaon black
11.16:1passpasspassPasses 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 #63cdcf 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

#63cdcf reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #63cdcf
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 #63cdcf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/63cdcf-a2babe-d45992-1f272d-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