Color

#33b1fa

#33b1fa
hex#33b1fa
rgbrgb(51, 177, 250)
hslhsl(202, 95%, 59%)
oklchoklch(0.726 0.15 239.9)
Closest name: Cerulean (#55aaee)Relative luminance 0.3905

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fa7c33

#33fadf · #334efa

#fa33b1 · #b1fa33

Split-complementary

Open in tool →

#fa334e · #fadf33

#df33fa · #fa7c33 · #4efa33

Contrast

#33b1fa as textRatioAAAA largeAAAFix
Aaon white
2.38:1failfailfail
  • AA: use #0579bd as the text (4.69:1)
  • AAA: use #045d90 as the text (7.06:1)
  • AA: or shift the background to #3d3d3d (4.56:1)
  • AAA: or shift the background to #1c1c1c (7.15:1)
Aaon black
8.81:1passpasspassPasses 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 #33b1fa as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#33b1fa reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #33b1fa
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 #33b1fa and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/33b1fa-9cb1c4-df4e5f-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