Color

#305bcf

#305bcf
hex#305bcf
rgbrgb(48, 91, 207)
hslhsl(224, 62%, 50%)
oklchoklch(0.511 0.186 265)
Closest name: God of Rain (#4466cc)Relative luminance 0.1262

Tints & shades

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

Harmonies

Complementary

Open in tool →

#cfa430

#30aacf · #5530cf

#cf305b · #5bcf30

Split-complementary

Open in tool →

#cf5530 · #aacf30

#cf30aa · #cfa430 · #30cf55

Contrast

#305bcf as textRatioAAAA largeAAAFix
Aaon white
5.96:1passpassfail
  • AAA: use #2b50b6 as the text (7.18:1)
Aaon black
3.52:1failpassfail
  • AA: use #4d72d5 as the text (4.68:1)
  • AAA: use #7793df as the text (7.02:1)
  • AA: or shift the background to #e0e0e0 (4.52:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #305bcf 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

#305bcf reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #305bcf
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 #305bcf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/305bcf-9ca2c4-df724e-221f2d-e9eff1?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