Color

#61b2ef

#61b2ef
hex#61b2ef
rgbrgb(97, 178, 239)
hslhsl(206, 82%, 66%)
oklchoklch(0.737 0.119 243.2)
Closest name: Cerulean (#55aaee)Relative luminance 0.4061

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ef9f61

#61efe6 · #616bef

#ef61b2 · #b2ef61

Split-complementary

Open in tool →

#ef616b · #efe661

#e661ef · #ef9f61 · #6bef61

Contrast

#61b2ef as textRatioAAAA largeAAAFix
Aaon white
2.3:1failfailfail
  • AA: use #147ac8 as the text (4.52:1)
  • AAA: use #0f5b95 as the text (7.12:1)
  • AA: or shift the background to #404040 (4.5:1)
  • AAA: or shift the background to #1f1f1f (7.16:1)
Aaon black
9.12:1passpasspassPasses 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 #61b2ef as the background.

Brands using this color

Fonts for this mood

#61b2ef reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #61b2ef
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 #61b2ef and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/61b2ef-9caec4-df4e56-1f212d-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