Color

#28658a

#28658a
hex#28658a
rgbrgb(40, 101, 138)
hslhsl(203, 55%, 35%)
oklchoklch(0.484 0.086 238.9)
Closest name: Blue Velvet (#0d6183)Relative luminance 0.1159

Colors that go with #28658a

Charcoal, Royal Blue 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 →

#8a4e28

#288a7f · #28348a

#8a2865 · #658a28

Split-complementary

Open in tool →

#8a2834 · #8a7f28

#7f288a · #8a4e28 · #348a28

Contrast

#28658a as textRatioAAAA largeAAAFix
Aaon white
6.33:1passpassfail
  • AAA: use #255c7e as the text (7.21:1)
Aaon black
3.32:1failpassfail
  • AA: use #317caa as the text (4.59:1)
  • AAA: use #519dcd as the text (7.05:1)
  • AA: or shift the background to #dbdbdb (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 #28658a as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#28658a reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #28658a
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 #28658a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/28658a-9cb0c4-df4e5d-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