Color

#2f5bbc

#2f5bbc
hex#2f5bbc
rgbrgb(47, 91, 188)
hslhsl(221, 60%, 46%)
oklchoklch(0.496 0.161 263.4)
Closest name: Blasphemous Blue (#3356aa)Relative luminance 0.1172

Tints & shades

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

Harmonies

Complementary

Open in tool →

#bc8f2f

#2fa2bc · #492fbc

#bc2f5b · #5bbc2f

Split-complementary

Open in tool →

#bc492f · #a2bc2f

#bc2fa2 · #bc8f2f · #2fbc49

Contrast

#2f5bbc as textRatioAAAA largeAAAFix
Aaon white
6.28:1passpassfail
  • AAA: use #2b54ab as the text (7.1:1)
Aaon black
3.34:1failpassfail
  • AA: use #4773d1 as the text (4.64:1)
  • AAA: use #7495dc as the text (7.08:1)
  • AA: or shift the background to #dbdbdb (4.54:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2f5bbc as the background.

Brands using this color

Fonts for this mood

#2f5bbc reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2f5bbc
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 #2f5bbc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2f5bbc-9ca4c4-df6b4e-211f2d-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