Color

#308eb0

#308eb0
hex#308eb0
rgbrgb(48, 142, 176)
hslhsl(196, 57%, 44%)
oklchoklch(0.607 0.1 226.4)
Closest name: Blue Moon (#3992a8)Relative luminance 0.2311

Tints & shades

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

Harmonies

Complementary

Open in tool →

#b05230

#30b092 · #304eb0

#b0308e · #8eb030

Split-complementary

Open in tool →

#b0304e · #b09230

#9230b0 · #b05230 · #4eb030

Contrast

#308eb0 as textRatioAAAA largeAAAFix
Aaon white
3.74:1failpassfail
  • AA: use #2b7e9c as the text (4.6:1)
  • AAA: use #205e74 as the text (7.2:1)
  • AA: or shift the background to #1c1c1c (4.56:1)
Aaon black
5.62:1passpassfail
  • AAA: use #37a1c8 as the text (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #308eb0 as the background.

Brands using this color

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

Palettes built around it

Fonts for this mood

#308eb0 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #308eb0
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 #308eb0 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/308eb0-9cb5c4-df4e6e-1f232d-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