Color

#031cbf

#031cbf
hex#031cbf
rgbrgb(3, 28, 191)
hslhsl(232, 97%, 38%)
oklchoklch(0.382 0.239 264.5)
Closest name: mediumblue (#0000cd)Relative luminance 0.0461

Tints & shades

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

Harmonies

Complementary

Open in tool →

#bfa603

#037abf · #4803bf

#bf031c · #1cbf03

Split-complementary

Open in tool →

#bf4803 · #7abf03

#bf037a · #bfa603 · #03bf48

Contrast

#031cbf as textRatioAAAA largeAAAFix
Aaon white
10.92:1passpasspassPasses AAA — no fix needed.
Aaon black
1.92:1failfailfail
  • AA: use #4f66fc as the text (4.64:1)
  • AAA: use #7c8efd as the text (7.14:1)
  • AA: or shift the background to #a8a8a8 (4.59:1)
  • AAA: or shift the background to #cfcfcf (7.01:1)

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

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

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

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

tool url/palettes/new/031cbf-9c9dc4-df864e-231f2d-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