Color

#3a58df

#3a58df
hex#3a58df
rgbrgb(58, 88, 223)
hslhsl(229, 72%, 55%)
oklchoklch(0.523 0.208 268.4)
Closest name: Arcane Brew (#5260e1)Relative luminance 0.1321

Tints & shades

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

Harmonies

Complementary

Open in tool →

#dfc13a

#3aabdf · #6e3adf

#df3a58 · #58df3a

Split-complementary

Open in tool →

#df6e3a · #abdf3a

#df3aab · #dfc13a · #3adf6e

Contrast

#3a58df as textRatioAAAA largeAAAFix
Aaon white
5.77:1passpassfail
  • AAA: use #2445db as the text (7.12:1)
Aaon black
3.64:1failpassfail
  • AA: use #506ae2 as the text (4.5:1)
  • AAA: use #7b90ea as the text (7.02:1)
  • AA: or shift the background to #e6e6e6 (4.62:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3a58df 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

#3a58df reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3a58df
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #3a58df and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3a58df-9c9fc4-df7e4e-231f2d-e9eef1?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