Color

#3a20fe

#3a20fe
hex#3a20fe
rgbrgb(58, 32, 254)
hslhsl(247, 99%, 56%)
oklchoklch(0.483 0.292 272)
Closest name: Blustering Blue (#4411ff)Relative luminance 0.0909

Colors that go with #3a20fe

Charcoal, Cobalt Blue and Cornflower Blue 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 →

#e4fe20

#2075fe · #a920fe

#fe3a20 · #20fe3a

Split-complementary

Open in tool →

#fea920 · #75fe20

#fe2075 · #e4fe20 · #20fea9

Contrast

#3a20fe as textRatioAAAA largeAAAFix
Aaon white
7.45:1passpasspassPasses AAA — no fix needed.
Aaon black
2.82:1failfailfail
  • AA: use #6f5dfe as the text (4.67:1)
  • AAA: use #9385fe as the text (7.03:1)
  • AA: or shift the background to #c9c9c9 (4.5:1)
  • AAA: or shift the background to #fafafa (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3a20fe as the background.

Brands using this color

Fonts for this mood

#3a20fe reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3a20fe
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 #3a20fe and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3a20fe-a59cc4-dfaa4e-271f2d-e9ecf1?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