Color

#4058ba

#4058ba
hex#4058ba
rgbrgb(64, 88, 186)
hslhsl(228, 49%, 49%)
oklchoklch(0.496 0.157 269.5)
Closest name: Blasphemous Blue (#3356aa)Relative luminance 0.1161

Colors that go with #4058ba

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 →

#baa240

#4095ba · #6440ba

#ba4058 · #58ba40

Split-complementary

Open in tool →

#ba6440 · #95ba40

#ba4095 · #baa240 · #40ba64

Contrast

#4058ba as textRatioAAAA largeAAAFix
Aaon white
6.32:1passpassfail
  • AAA: use #3b51ab as the text (7.12:1)
Aaon black
3.32:1failpassfail
  • AA: use #5c71c7 as the text (4.64:1)
  • AAA: use #8292d4 as the text (7.01:1)
  • AA: or shift the background to #dbdbdb (4.56:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4058ba 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

#4058ba reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4058ba
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 #4058ba and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4058ba-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