Color

#1251e2

#1251e2
hex#1251e2
rgbrgb(18, 81, 226)
hslhsl(222, 85%, 48%)
oklchoklch(0.501 0.228 263.1)
Closest name: C64 Blue (#003aff)Relative luminance 0.115

Colors that go with #1251e2

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 →

#e2a412

#12b9e2 · #3c12e2

#e21251 · #51e212

Split-complementary

Open in tool →

#e23c12 · #b9e212

#e212b9 · #e2a412 · #12e23c

Contrast

#1251e2 as textRatioAAAA largeAAAFix
Aaon white
6.36:1passpassfail
  • AAA: use #114ad0 as the text (7.21:1)
Aaon black
3.3:1failpassfail
  • AA: use #346cef as the text (4.54:1)
  • AAA: use #6d95f3 as the text (7.24:1)
  • AA: or shift the background to #d9d9d9 (4.51:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1251e2 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#1251e2 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1251e2
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 #1251e2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1251e2-9ca3c4-df6e4e-211f2d-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