Color

#1900fa

#1900fa
hex#1900fa
rgbrgb(25, 0, 250)
hslhsl(246, 100%, 49%)
oklchoklch(0.45 0.305 266.2)
Closest name: blue (#0000ff)Relative luminance 0.0711

Tints & shades

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

Harmonies

Complementary

Open in tool →

#e1fa00

#0064fa · #9600fa

#fa1900 · #00fa19

Split-complementary

Open in tool →

#fa9600 · #64fa00

#fa0064 · #e1fa00 · #00fa96

Contrast

#1900fa as textRatioAAAA largeAAAFix
Aaon white
8.67:1passpasspassPasses AAA — no fix needed.
Aaon black
2.42:1failfailfail
  • AA: use #6c5cff as the text (4.61:1)
  • AAA: use #9185ff as the text (7:1)
  • AA: or shift the background to #bdbdbd (4.62:1)
  • AAA: or shift the background to #e8e8e8 (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1900fa as the background.

Brands using this color

Fonts for this mood

#1900fa reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1900fa
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 #1900fa and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1900fa-a59cc4-dfa74e-271f2d-e9ecf1?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