Color

#153b60

#153b60
hex#153b60
rgbrgb(21, 59, 96)
hslhsl(210, 64%, 23%)
oklchoklch(0.345 0.078 250.6)
Closest name: Maniac Mansion (#004058)Relative luminance 0.0413

Tints & shades

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

Harmonies

Complementary

Open in tool →

#603b15

#156060 · #151560

#60153b · #3b6015

Split-complementary

Open in tool →

#601515 · #606015

#601560 · #603b15 · #156015

Contrast

#153b60 as textRatioAAAA largeAAAFix
Aaon white
11.5:1passpasspassPasses AAA — no fix needed.
Aaon black
1.83:1failfailfail
  • AA: use #2b78c5 as the text (4.6:1)
  • AAA: use #5c9cdb as the text (7.23:1)
  • AA: or shift the background to #a3a3a3 (4.56:1)
  • AAA: or shift the background to #cccccc (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #153b60 as the background.

Brands using this color

Fonts for this mood

#153b60 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #153b60
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 #153b60 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/153b60-9cabc4-df514e-1f202d-e9f1f1?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