Color

#30d4fd

#30d4fd
hex#30d4fd
rgbrgb(48, 212, 253)
hslhsl(192, 98%, 59%)
oklchoklch(0.807 0.138 219.9)
Closest name: Blue Mana (#68c2f5)Relative luminance 0.5481

Colors that go with #30d4fd

Charcoal, Crimson and Dodger Blue lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fd5930

#30fdbf · #306dfd

#fd30d4 · #d4fd30

Split-complementary

Open in tool →

#fd306d · #fdbf30

#bf30fd · #fd5930 · #6dfd30

Contrast

#30d4fd as textRatioAAAA largeAAAFix
Aaon white
1.76:1failfailfail
  • AA: use #027e9d as the text (4.69:1)
  • AAA: use #016179 as the text (7.03:1)
  • AA: or shift the background to #4f4f4f (4.67:1)
  • AAA: or shift the background to #333333 (7.2:1)
Aaon black
11.96:1passpasspassPasses 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 #30d4fd as the background.

Brands using this color

Fonts for this mood

#30d4fd reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #30d4fd
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #30d4fd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/30d4fd-a2b5be-df4e77-1f242d-e9f1ef?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