Color

#308ea1

#308ea1
hex#308ea1
rgbrgb(48, 142, 161)
hslhsl(190, 54%, 41%)
oklchoklch(0.6 0.09 213.9)
Closest name: Blue Moon (#3992a8)Relative luminance 0.2255

Tints & shades

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

Harmonies

Complementary

Open in tool →

#a14330

#30a17b · #3056a1

#a1308e · #8ea130

Split-complementary

Open in tool →

#a13056 · #a17b30

#7b30a1 · #a14330 · #56a130

Contrast

#308ea1 as textRatioAAAA largeAAAFix
Aaon white
3.81:1failpassfail
  • AA: use #2b8091 as the text (4.57:1)
  • AAA: use #21616e as the text (7:1)
  • AA: or shift the background to #1a1a1a (4.57:1)
Aaon black
5.51:1passpassfail
  • AAA: use #37a3b9 as the text (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #308ea1 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

#308ea1 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #308ea1
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 #308ea1 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/308ea1-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