Color

#6cb4e5

#6cb4e5
hex#6cb4e5
rgbrgb(108, 180, 229)
hslhsl(204, 70%, 66%)
oklchoklch(0.742 0.102 239.8)
Closest name: Birdie Num Num (#89acda)Relative luminance 0.4149

Tints & shades

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

Harmonies

Complementary

Open in tool →

#e59c6c

#6ce5d9 · #6c78e5

#e56cb4 · #b4e56c

Split-complementary

Open in tool →

#e56c78 · #e5d96c

#d96ce5 · #e59c6c · #78e56c

Contrast

#6cb4e5 as textRatioAAAA largeAAAFix
Aaon white
2.26:1failfailfail
  • AA: use #207ab6 as the text (4.65:1)
  • AAA: use #185d8b as the text (7.05:1)
  • AA: or shift the background to #404040 (4.59:1)
  • AAA: or shift the background to #212121 (7.13:1)
Aaon black
9.3:1passpasspassPasses 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 #6cb4e5 as the background.

Brands using this color

Fonts for this mood

#6cb4e5 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #6cb4e5
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 #6cb4e5 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/6cb4e5-9cafc4-df4e5a-1f222d-e9f1f0?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