Color

#2b90ca

#2b90ca
hex#2b90ca
rgbrgb(43, 144, 202)
hslhsl(202, 65%, 48%)
oklchoklch(0.623 0.125 239.3)
Closest name: Blue Burst (#309cd0)Relative luminance 0.2472

Colors that go with #2b90ca

Charcoal, Red and Copper 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 →

#ca652b

#2bcab5 · #2b40ca

#ca2b90 · #90ca2b

Split-complementary

Open in tool →

#ca2b40 · #cab52b

#b52bca · #ca652b · #40ca2b

Contrast

#2b90ca as textRatioAAAA largeAAAFix
Aaon white
3.53:1failpassfail
  • AA: use #257bad as the text (4.65:1)
  • AAA: use #1c5d82 as the text (7.15:1)
  • AA: or shift the background to #212121 (4.56:1)
Aaon black
5.94:1passpassfail
  • AAA: use #3d9ed6 as the text (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2b90ca 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

#2b90ca reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2b90ca
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 #2b90ca and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2b90ca-9cb1c4-df4e5f-1f222d-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