Color

#6cb1ea

#6cb1ea
hex#6cb1ea
rgbrgb(108, 177, 234)
hslhsl(207, 75%, 67%)
oklchoklch(0.737 0.109 244.9)
Closest name: Cerulean (#55aaee)Relative luminance 0.4057

Tints & shades

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

Harmonies

Complementary

Open in tool →

#eaa56c

#6ceae4 · #6c72ea

#ea6cb1 · #b1ea6c

Split-complementary

Open in tool →

#ea6c72 · #eae46c

#e46cea · #eaa56c · #72ea6c

Contrast

#6cb1ea as textRatioAAAA largeAAAFix
Aaon white
2.3:1failfailfail
  • AA: use #1c79c4 as the text (4.58:1)
  • AAA: use #155a93 as the text (7.2:1)
  • AA: or shift the background to #404040 (4.5:1)
  • AAA: or shift the background to #1f1f1f (7.15:1)
Aaon black
9.11:1passpasspassPasses 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 #6cb1ea as the background.

Brands using this color

Fonts for this mood

#6cb1ea reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #6cb1ea
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 #6cb1ea and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/6cb1ea-9cadc4-df4e53-1f212d-e9f1f1?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