Color

#0f17fa

#0f17fa
hex#0f17fa
rgbrgb(15, 23, 250)
hslhsl(238, 96%, 52%)
oklchoklch(0.457 0.301 265.2)
Closest name: blue (#0000ff)Relative luminance 0.0762

Tints & shades

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

Harmonies

Complementary

Open in tool →

#faf20f

#0f8cfa · #7d0ffa

#fa0f17 · #17fa0f

Split-complementary

Open in tool →

#fa7d0f · #8cfa0f

#fa0f8c · #faf20f · #0ffa7d

Contrast

#0f17fa as textRatioAAAA largeAAAFix
Aaon white
8.32:1passpasspassPasses AAA — no fix needed.
Aaon black
2.52:1failfailfail
  • AA: use #5f64fc as the text (4.72:1)
  • AAA: use #878bfd as the text (7.14:1)
  • AA: or shift the background to #bfbfbf (4.53:1)
  • AAA: or shift the background to #ededed (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0f17fa as the background.

Brands using this color

Fonts for this mood

#0f17fa reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0f17fa
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 #0f17fa and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0f17fa-9f9cc4-df944e-251f2d-e9edf1?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