Color

#2a87b2

#2a87b2
hex#2a87b2
rgbrgb(42, 135, 178)
hslhsl(199, 62%, 43%)
oklchoklch(0.589 0.107 233.2)
Closest name: steelblue (#4682b4)Relative luminance 0.2103

Colors that go with #2a87b2

Charcoal, Crimson and Royal 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 →

#b2552a

#2ab299 · #2a43b2

#b22a87 · #87b22a

Split-complementary

Open in tool →

#b22a43 · #b2992a

#992ab2 · #b2552a · #43b22a

Contrast

#2a87b2 as textRatioAAAA largeAAAFix
Aaon white
4.03:1failpassfail
  • AA: use #277da5 as the text (4.6:1)
  • AAA: use #1d5e7c as the text (7.13:1)
  • AA: or shift the background to #141414 (4.57:1)
Aaon black
5.21:1passpassfail
  • AAA: use #39a0d0 as the text (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2a87b2 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#2a87b2 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2a87b2
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 #2a87b2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2a87b2-9cb3c4-df4e66-1f232d-e9f1f0?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