Color

#63afbb

#63afbb
hex#63afbb
rgbrgb(99, 175, 187)
hslhsl(188, 39%, 56%)
oklchoklch(0.709 0.077 208.7)
Closest name: Blue Eye Samurai (#75aebd)Relative luminance 0.369

Tints & shades

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

Harmonies

Complementary

Open in tool →

#bb6f63

#63bb9a · #6383bb

#bb63af · #afbb63

Split-complementary

Open in tool →

#bb6383 · #bb9a63

#9a63bb · #bb6f63 · #83bb63

Contrast

#63afbb as textRatioAAAA largeAAAFix
Aaon white
2.51:1failfailfail
  • AA: use #3d808a as the text (4.51:1)
  • AAA: use #2d5f67 as the text (7.13:1)
  • AA: or shift the background to #383838 (4.68:1)
  • AAA: or shift the background to #171717 (7.15:1)
Aaon black
8.38:1passpasspassPasses 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 #63afbb 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

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

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

tool url/palettes/new/63afbb-a2b7be-df4e81-1f252d-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