Color

#285bb8

#285bb8
hex#285bb8
rgbrgb(40, 91, 184)
hslhsl(219, 64%, 44%)
oklchoklch(0.49 0.157 261.2)
Closest name: Denim (#1560bd)Relative luminance 0.1139

Colors that go with #285bb8

Charcoal, Sienna 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 →

#b88628

#28a2b8 · #3e28b8

#b8285b · #5bb828

Split-complementary

Open in tool →

#b83e28 · #a2b828

#b828a2 · #b88628 · #28b83e

Contrast

#285bb8 as textRatioAAAA largeAAAFix
Aaon white
6.4:1passpassfail
  • AAA: use #2654ab as the text (7.15:1)
Aaon black
3.28:1failpassfail
  • AA: use #3f73d5 as the text (4.62:1)
  • AAA: use #6d95df as the text (7.01:1)
  • AA: or shift the background to #d9d9d9 (4.54:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #285bb8 as the background.

Brands using this color

Fonts for this mood

#285bb8 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #285bb8
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 #285bb8 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/285bb8-9ca5c4-df664e-211f2d-e9f0f1?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