Color

#00affa

#00affa
hex#00affa
rgbrgb(0, 175, 250)
hslhsl(198, 100%, 49%)
oklchoklch(0.716 0.159 238.1)
Closest name: Cerulean (#55aaee)Relative luminance 0.3756

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fa4b00

#00fac8 · #0032fa

#fa00af · #affa00

Split-complementary

Open in tool →

#fa0032 · #fac800

#c800fa · #fa4b00 · #32fa00

Contrast

#00affa as textRatioAAAA largeAAAFix
Aaon white
2.47:1failfailfail
  • AA: use #007db3 as the text (4.58:1)
  • AAA: use #005d85 as the text (7.23:1)
  • AA: or shift the background to #3b3b3b (4.54:1)
  • AAA: or shift the background to #1a1a1a (7.05:1)
Aaon black
8.51:1passpasspassPasses 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 #00affa as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#00affa reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #00affa
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 #00affa and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/00affa-9cb3c4-df4e69-1f232d-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