Color

#124cde

#124cde
hex#124cde
rgbrgb(18, 76, 222)
hslhsl(223, 85%, 47%)
oklchoklch(0.488 0.229 263.5)
Closest name: C64 Blue (#003aff)Relative luminance 0.1057

Colors that go with #124cde

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.

Real palettes that use #124cde

Tints & shades

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

Harmonies

Complementary

Open in tool →

#dea412

#12b2de · #3e12de

#de124c · #4cde12

Split-complementary

Open in tool →

#de3e12 · #b2de12

#de12b2 · #dea412 · #12de3e

Contrast

#124cde as textRatioAAAA largeAAAFix
Aaon white
6.74:1passpassfail
  • AAA: use #1148d4 as the text (7.24:1)
Aaon black
3.11:1failpassfail
  • AA: use #396cef as the text (4.57:1)
  • AAA: use #6d93f3 as the text (7.12:1)
  • AA: or shift the background to #d4d4d4 (4.55:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #124cde as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#124cde reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #124cde
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 #124cde and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/124cde-9ca3c4-df704e-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