Color

#0123fe

#0123fe
hex#0123fe
rgbrgb(1, 35, 254)
hslhsl(232, 99%, 50%)
oklchoklch(0.468 0.3 264.3)
Closest name: blue (#0000ff)Relative luminance 0.0836

Colors that go with #0123fe

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 →

#fedc01

#01a1fe · #5e01fe

#fe0123 · #23fe01

Split-complementary

Open in tool →

#fe5e01 · #a1fe01

#fe01a1 · #fedc01 · #01fe5e

Contrast

#0123fe as textRatioAAAA largeAAAFix
Aaon white
7.86:1passpasspassPasses AAA — no fix needed.
Aaon black
2.67:1failfailfail
  • AA: use #4d65fe as the text (4.61:1)
  • AAA: use #7b8dfe as the text (7.08:1)
  • AA: or shift the background to #c4c4c4 (4.5:1)
  • AAA: or shift the background to #f2f2f2 (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0123fe as the background.

Brands using this color

Fonts for this mood

#0123fe reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0123fe
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 #0123fe and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0123fe-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