Color

#4157af

#4157af
hex#4157af
rgbrgb(65, 87, 175)
hslhsl(228, 46%, 47%)
oklchoklch(0.487 0.142 269.9)
Closest name: Blasphemous Blue (#3356aa)Relative luminance 0.1104

Colors that go with #4157af

Charcoal, Sea Green 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 →

#af9941

#418eaf · #6241af

#af4157 · #57af41

Split-complementary

Open in tool →

#af6241 · #8eaf41

#af418e · #af9941 · #41af62

Contrast

#4157af as textRatioAAAA largeAAAFix
Aaon white
6.55:1passpassfail
  • AAA: use #3d51a4 as the text (7.21:1)
Aaon black
3.21:1failpassfail
  • AA: use #5b70c2 as the text (4.54:1)
  • AAA: use #8494d2 as the text (7.15:1)
  • AA: or shift the background to #d6d6d6 (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 #4157af as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#4157af reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4157af
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 #4157af and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4157af-9c9fc4-df7c4e-231f2d-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