Color

#0f5ea9

#0f5ea9
hex#0f5ea9
rgbrgb(15, 94, 169)
hslhsl(209, 84%, 36%)
oklchoklch(0.48 0.139 252.9)
Closest name: Blasphemous Blue (#3356aa)Relative luminance 0.1097

Tints & shades

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

Harmonies

Complementary

Open in tool →

#a9590f

#0fa9a6 · #0f11a9

#a90f5e · #5ea90f

Split-complementary

Open in tool →

#a90f11 · #a9a60f

#a60fa9 · #a9590f · #11a90f

Contrast

#0f5ea9 as textRatioAAAA largeAAAFix
Aaon white
6.57:1passpassfail
  • AAA: use #0e59a0 as the text (7.11:1)
Aaon black
3.19:1failpassfail
  • AA: use #1276d3 as the text (4.56:1)
  • AAA: use #3f99ee as the text (7:1)
  • AA: or shift the background to #d6d6d6 (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 #0f5ea9 as the background.

Brands using this color

Fonts for this mood

#0f5ea9 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0f5ea9
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 #0f5ea9 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0f5ea9-9cacc4-df4e4e-1f212d-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