Color

#4e51a2

#4e51a2
hex#4e51a2
rgbrgb(78, 81, 162)
hslhsl(238, 35%, 47%)
oklchoklch(0.474 0.128 278.7)
Closest name: Blasphemous Blue (#3356aa)Relative luminance 0.1011

Colors that go with #4e51a2

Charcoal, Steel Blue 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 →

#a29f4e

#4e7ba2 · #754ea2

#a24e51 · #51a24e

Split-complementary

Open in tool →

#a2754e · #7ba24e

#a24e7b · #a29f4e · #4ea275

Contrast

#4e51a2 as textRatioAAAA largeAAAFix
Aaon white
6.95:1passpassfail
  • AAA: use #4c4f9e as the text (7.19:1)
Aaon black
3.02:1failpassfail
  • AA: use #6b6eb8 as the text (4.55:1)
  • AAA: use #9193ca as the text (7.23:1)
  • AA: or shift the background to #d1d1d1 (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 #4e51a2 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

#4e51a2 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4e51a2
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 #4e51a2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4e51a2-9f9cc4-df944e-251f2d-e9edf1?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