Color

#285fb8

#285fb8
hex#285fb8
rgbrgb(40, 95, 184)
hslhsl(217, 64%, 44%)
oklchoklch(0.499 0.152 259.7)
Closest name: Denim (#1560bd)Relative luminance 0.121

Colors that go with #285fb8

Charcoal, Crimson and Sienna 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 →

#b88128

#28a7b8 · #3928b8

#b8285f · #5fb828

Split-complementary

Open in tool →

#b83928 · #a7b828

#b828a7 · #b88128 · #28b839

Contrast

#285fb8 as textRatioAAAA largeAAAFix
Aaon white
6.14:1passpassfail
Aaon black
3.42:1failpassfail
  • AA: use #3672d3 as the text (4.5:1)
  • AAA: use #6d98df as the text (7.21:1)
  • AA: or shift the background to #dedede (4.57:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #285fb8 as the background.

Brands using this color

Fonts for this mood

#285fb8 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #285fb8
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 #285fb8 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/285fb8-9ca7c4-df624e-201f2d-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