Color

#0a12f0

#0a12f0
hex#0a12f0
rgbrgb(10, 18, 240)
hslhsl(238, 92%, 49%)
oklchoklch(0.44 0.293 264.9)
Closest name: Burning Ultrablue (#150aec)Relative luminance 0.0679

Tints & shades

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

Harmonies

Complementary

Open in tool →

#f0e80a

#0a85f0 · #750af0

#f00a12 · #12f00a

Split-complementary

Open in tool →

#f0750a · #85f00a

#f00a85 · #f0e80a · #0af075

Contrast

#0a12f0 as textRatioAAAA largeAAAFix
Aaon white
8.91:1passpasspassPasses AAA — no fix needed.
Aaon black
2.36:1failfailfail
  • AA: use #5d63f8 as the text (4.61:1)
  • AAA: use #898dfa as the text (7.25:1)
  • AA: or shift the background to #bababa (4.59:1)
  • AAA: or shift the background to #e6e6e6 (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0a12f0 as the background.

Brands using this color

Fonts for this mood

#0a12f0 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0a12f0
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 #0a12f0 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0a12f0-9f9cc4-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