Color

#283148

#283148
hex#283148
rgbrgb(40, 49, 72)
hslhsl(223, 29%, 22%)
oklchoklch(0.316 0.043 267.5)
Closest name: Blue Whale (#1e3442)Relative luminance 0.0312

Tints & shades

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

Harmonies

Complementary

Open in tool →

#483f28

#284148 · #2f2848

#482831 · #314828

Split-complementary

Open in tool →

#482f28 · #414828

#482841 · #483f28 · #28482f

Contrast

#283148 as textRatioAAAA largeAAAFix
Aaon white
12.94:1passpasspassPasses AAA — no fix needed.
Aaon black
1.62:1failfailfail
  • AA: use #6175a8 as the text (4.62:1)
  • AAA: use #8595bc as the text (7.02:1)
  • AA: or shift the background to #999999 (4.54:1)
  • AAA: or shift the background to #bfbfbf (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #283148 as the background.

Brands using this color

Fonts for this mood

#283148 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #283148
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 #283148 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/283148-9ca3c4-df704e-211f2d-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