Color

#031cfc

#031cfc
hex#031cfc
rgbrgb(3, 28, 252)
hslhsl(234, 98%, 50%)
oklchoklch(0.461 0.302 264.4)
Closest name: blue (#0000ff)Relative luminance 0.0788

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fce303

#0398fc · #6703fc

#fc031c · #1cfc03

Split-complementary

Open in tool →

#fc6703 · #98fc03

#fc0398 · #fce303 · #03fc67

Contrast

#031cfc as textRatioAAAA largeAAAFix
Aaon white
8.15:1passpasspassPasses AAA — no fix needed.
Aaon black
2.58:1failfailfail
  • AA: use #5364fd as the text (4.61:1)
  • AAA: use #818dfe as the text (7.17:1)
  • AA: or shift the background to #c2c2c2 (4.58:1)
  • AAA: or shift the background to #f0f0f0 (7.15:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #031cfc as the background.

Brands using this color

Fonts for this mood

#031cfc reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #031cfc
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 #031cfc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/031cfc-9d9cc4-df8a4e-241f2d-e9eef1?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