Color

#031eba

#031eba
hex#031eba
rgbrgb(3, 30, 186)
hslhsl(231, 97%, 37%)
oklchoklch(0.378 0.232 264.5)
Closest name: mediumblue (#0000cd)Relative luminance 0.0449

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ba9e03

#037aba · #4303ba

#ba031e · #1eba03

Split-complementary

Open in tool →

#ba4303 · #7aba03

#ba037a · #ba9e03 · #03ba43

Contrast

#031eba as textRatioAAAA largeAAAFix
Aaon white
11.06:1passpasspassPasses AAA — no fix needed.
Aaon black
1.9:1failfailfail
  • AA: use #4a65fc as the text (4.56:1)
  • AAA: use #7c90fd as the text (7.26:1)
  • AA: or shift the background to #a6a6a6 (4.54:1)
  • AAA: or shift the background to #cfcfcf (7.1:1)

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

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

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

tool url/palettes/new/031eba-9c9ec4-df834e-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