Color

#2a38fe

#2a38fe
hex#2a38fe
rgbrgb(42, 56, 254)
hslhsl(236, 99%, 58%)
oklchoklch(0.498 0.28 268)
Closest name: C64 Blue (#003aff)Relative luminance 0.1048

Colors that go with #2a38fe

Charcoal, Crimson 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 →

#fef02a

#2aa2fe · #862afe

#fe2a38 · #38fe2a

Split-complementary

Open in tool →

#fe862a · #a2fe2a

#fe2aa2 · #fef02a · #2afe86

Contrast

#2a38fe as textRatioAAAA largeAAAFix
Aaon white
6.78:1passpassfail
  • AAA: use #2533fe as the text (7.04:1)
Aaon black
3.1:1failpassfail
  • AA: use #5863fe as the text (4.63:1)
  • AAA: use #858dfe as the text (7.24:1)
  • AA: or shift the background to #d4d4d4 (4.58:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2a38fe as the background.

Brands using this color

Fonts for this mood

#2a38fe reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2a38fe
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 #2a38fe and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2a38fe-9e9cc4-df8f4e-241f2d-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