Color

#0f37ff

#0f37ff
hex#0f37ff
rgbrgb(15, 55, 255)
hslhsl(230, 100%, 53%)
oklchoklch(0.491 0.287 264.9)
Closest name: C64 Blue (#003aff)Relative luminance 0.1005

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ffd70f

#0fafff · #5f0fff

#ff0f37 · #37ff0f

Split-complementary

Open in tool →

#ff5f0f · #afff0f

#ff0faf · #ffd70f · #0fff5f

Contrast

#0f37ff as textRatioAAAA largeAAAFix
Aaon white
6.97:1passpassfail
  • AAA: use #0a33ff as the text (7.17:1)
Aaon black
3.01:1failpassfail
  • AA: use #4766ff as the text (4.61:1)
  • AAA: use #7a90ff as the text (7.26:1)
  • AA: or shift the background to #d1d1d1 (4.57:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0f37ff 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

#0f37ff reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0f37ff
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 #0f37ff and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0f37ff-9c9ec4-df814e-231f2d-e9eef1?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