Color

#0037eb

#0037eb
hex#0037eb
rgbrgb(0, 55, 235)
hslhsl(226, 100%, 46%)
oklchoklch(0.467 0.266 263.9)
Closest name: Blue Overdose (#0020ef)Relative luminance 0.0873

Colors that go with #0037eb

Charcoal, Crimson and Amber 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 →

#ebb400

#00aceb · #3f00eb

#eb0037 · #37eb00

Split-complementary

Open in tool →

#eb3f00 · #aceb00

#eb00ac · #ebb400 · #00eb3f

Contrast

#0037eb as textRatioAAAA largeAAAFix
Aaon white
7.65:1passpasspassPasses AAA — no fix needed.
Aaon black
2.75:1failfailfail
  • AA: use #3867ff as the text (4.55:1)
  • AAA: use #7092ff as the text (7.24:1)
  • AA: or shift the background to #c7c7c7 (4.52:1)
  • AAA: or shift the background to #f5f5f5 (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 #0037eb as the background.

Brands using this color

Fonts for this mood

#0037eb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0037eb
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 #0037eb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0037eb-9ca1c4-df774e-221f2d-e9eff1?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