Color

#2a58ef

#2a58ef
hex#2a58ef
rgbrgb(42, 88, 239)
hslhsl(226, 86%, 55%)
oklchoklch(0.531 0.232 265.5)
Closest name: Bluerocratic (#1f66ff)Relative luminance 0.137

Tints & shades

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

Harmonies

Complementary

Open in tool →

#efc12a

#2abaef · #5e2aef

#ef2a58 · #58ef2a

Split-complementary

Open in tool →

#ef5e2a · #baef2a

#ef2aba · #efc12a · #2aef5e

Contrast

#2a58ef as textRatioAAAA largeAAAFix
Aaon white
5.61:1passpassfail
  • AAA: use #1142e4 as the text (7.18:1)
Aaon black
3.74:1failpassfail
  • AA: use #416af1 as the text (4.56:1)
  • AAA: use #7593f5 as the text (7.25:1)
  • AA: or shift the background to #e8e8e8 (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 #2a58ef as the background.

Brands using this color

Fonts for this mood

#2a58ef reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2a58ef
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 #2a58ef and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2a58ef-9ca1c4-df774e-221f2d-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