Color

#1031ea

#1031ea
hex#1031ea
rgbrgb(16, 49, 234)
hslhsl(231, 87%, 49%)
oklchoklch(0.46 0.269 265.2)
Closest name: Bluebonnet (#1c1cf0)Relative luminance 0.0825

Colors that go with #1031ea

Charcoal, Crimson and Cobalt Blue lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#eac910

#109eea · #5c10ea

#ea1031 · #31ea10

Split-complementary

Open in tool →

#ea5c10 · #9eea10

#ea109e · #eac910 · #10ea5c

Contrast

#1031ea as textRatioAAAA largeAAAFix
Aaon white
7.93:1passpasspassPasses AAA — no fix needed.
Aaon black
2.65:1failfailfail
  • AA: use #4f67f3 as the text (4.57:1)
  • AAA: use #7e90f6 as the text (7.21:1)
  • AA: or shift the background to #c4c4c4 (4.54:1)
  • AAA: or shift the background to #f2f2f2 (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 #1031ea as the background.

Brands using this color

Fonts for this mood

#1031ea reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1031ea
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

›analyze #1031ea and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1031ea-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