Color

#0028b8

#0028b8
hex#0028b8
rgbrgb(0, 40, 184)
hslhsl(227, 100%, 36%)
oklchoklch(0.387 0.223 264)
Closest name: Blue Hour (#0034ab)Relative luminance 0.0498

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#b89000

#0084b8 · #3400b8

#b80028 · #28b800

Split-complementary

Open in tool →

#b83400 · #84b800

#b80084 · #b89000 · #00b834

Contrast

#0028b8 as textRatioAAAA largeAAAFix
Aaon white
10.52:1passpasspassPasses AAA — no fix needed.
Aaon black
2:1failfailfail
  • AA: use #3d67ff as the text (4.58:1)
  • AAA: use #708fff as the text (7.06:1)
  • AA: or shift the background to #ababab (4.58:1)
  • AAA: or shift the background to #d4d4d4 (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0028b8 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

#0028b8 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0028b8
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #0028b8 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0028b8-9ca0c4-df7a4e-221f2d-e9eff1?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