Color

#33aaeb

#33aaeb
hex#33aaeb
rgbrgb(51, 170, 235)
hslhsl(201, 82%, 56%)
oklchoklch(0.703 0.139 238.1)
Closest name: Cerulean (#55aaee)Relative luminance 0.3545

Tints & shades

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

Harmonies

Complementary

Open in tool →

#eb7333

#33ebcf · #334eeb

#eb33aa · #aaeb33

Split-complementary

Open in tool →

#eb334e · #ebcf33

#cf33eb · #eb7333 · #4eeb33

Contrast

#33aaeb as textRatioAAAA largeAAAFix
Aaon white
2.6:1failfailfail
  • AA: use #127cb5 as the text (4.59:1)
  • AAA: use #0d5c87 as the text (7.25:1)
  • AA: or shift the background to #383838 (4.52:1)
  • AAA: or shift the background to #141414 (7.1:1)
Aaon black
8.09:1passpasspassPasses 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 #33aaeb as the background.

Brands using this color

Palettes built around it

Fonts for this mood

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

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

tool url/palettes/new/33aaeb-9cb1c4-df4e62-1f222d-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