Color

#30a3bb

#30a3bb
hex#30a3bb
rgbrgb(48, 163, 187)
hslhsl(190, 59%, 46%)
oklchoklch(0.663 0.104 215)
Closest name: Blue Ocean (#009dc4)Relative luminance 0.3041

Tints & shades

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

Harmonies

Complementary

Open in tool →

#bb4730

#30bb8c · #305ebb

#bb30a3 · #a3bb30

Split-complementary

Open in tool →

#bb305e · #bb8c30

#8c30bb · #bb4730 · #5ebb30

Contrast

#30a3bb as textRatioAAAA largeAAAFix
Aaon white
2.97:1failfailfail
  • AA: use #268092 as the text (4.58:1)
  • AAA: use #1c606d as the text (7.13:1)
  • AA: or shift the background to #2e2e2e (4.58:1)
  • AAA: or shift the background to #000000 (7.08:1)
Aaon black
7.08:1passpasspassPasses 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 #30a3bb 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

#30a3bb reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #30a3bb
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 #30a3bb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/30a3bb-a2b6be-df4e7c-1f252d-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