Color

#306191

#306191
hex#306191
rgbrgb(48, 97, 145)
hslhsl(210, 50%, 38%)
oklchoklch(0.481 0.094 250)
Closest name: Blue Velvet (#0d6183)Relative luminance 0.1122

Tints & shades

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

Harmonies

Complementary

Open in tool →

#916130

#309191 · #303091

#913061 · #619130

Split-complementary

Open in tool →

#913030 · #919130

#913091 · #916130 · #309130

Contrast

#306191 as textRatioAAAA largeAAAFix
Aaon white
6.47:1passpassfail
  • AAA: use #2d5986 as the text (7.28:1)
Aaon black
3.24:1failpassfail
  • AA: use #3c78b4 as the text (4.54:1)
  • AAA: use #6a9ccd as the text (7.25:1)
  • AA: or shift the background to #d9d9d9 (4.59:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #306191 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

#306191 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #306191
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 #306191 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/306191-9cabc4-df514e-1f202d-e9f1f1?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