Color

#1205ff

#1205ff
hex#1205ff
rgbrgb(18, 5, 255)
hslhsl(243, 100%, 51%)
oklchoklch(0.456 0.31 265.4)
Closest name: blue (#0000ff)Relative luminance 0.0746

Tints & shades

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

Harmonies

Complementary

Open in tool →

#f3ff05

#0576ff · #8f05ff

#ff1205 · #05ff12

Split-complementary

Open in tool →

#ff8f05 · #76ff05

#ff0576 · #f3ff05 · #05ff8f

Contrast

#1205ff as textRatioAAAA largeAAAFix
Aaon white
8.43:1passpasspassPasses AAA — no fix needed.
Aaon black
2.49:1failfailfail
  • AA: use #645cff as the text (4.52:1)
  • AAA: use #908aff as the text (7.27:1)
  • AA: or shift the background to #bfbfbf (4.58:1)
  • AAA: or shift the background to #ebebeb (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1205ff as the background.

Brands using this color

Fonts for this mood

#1205ff reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1205ff
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 #1205ff and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1205ff-a39cc4-dfa04e-261f2d-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