Color

#41b4fb

#41b4fb
hex#41b4fb
rgbrgb(65, 180, 251)
hslhsl(203, 96%, 62%)
oklchoklch(0.737 0.144 240.4)
Closest name: Cerulean (#55aaee)Relative luminance 0.4073

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fb8841

#41fbe5 · #4157fb

#fb41b4 · #b4fb41

Split-complementary

Open in tool →

#fb4157 · #fbe541

#e541fb · #fb8841 · #57fb41

Contrast

#41b4fb as textRatioAAAA largeAAAFix
Aaon white
2.3:1failfailfail
  • AA: use #047ac3 as the text (4.59:1)
  • AAA: use #035b91 as the text (7.22:1)
  • AA: or shift the background to #404040 (4.52:1)
  • AAA: or shift the background to #212121 (7.01:1)
Aaon black
9.15:1passpasspassPasses 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 #41b4fb as the background.

Brands using this color

Fonts for this mood

#41b4fb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #41b4fb
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 #41b4fb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/41b4fb-9cb0c4-df4e5d-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