Color

#30effd

#30effd
hex#30effd
rgbrgb(48, 239, 253)
hslhsl(184, 98%, 59%)
oklchoklch(0.87 0.141 202.8)
Closest name: Aqua (#0ff0fe)Relative luminance 0.6945

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fd3e30

#30fda4 · #3089fd

#fd30ef · #effd30

Split-complementary

Open in tool →

#fd3089 · #fda430

#a430fd · #fd3e30 · #89fd30

Contrast

#30effd as textRatioAAAA largeAAAFix
Aaon white
1.41:1failfailfail
  • AA: use #017f88 as the text (4.78:1)
  • AAA: use #01636a as the text (7.01:1)
  • AA: or shift the background to #5e5e5e (4.6:1)
  • AAA: or shift the background to #424242 (7.13:1)
Aaon black
14.89:1passpasspassPasses 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 #30effd as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

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

mcpConnect your agent — build around #30effd
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 #30effd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/30effd-a2b9be-df4e8a-1f262d-e9f1ee?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