Color

#153447

#153447
hex#153447
rgbrgb(21, 52, 71)
hslhsl(203, 54%, 18%)
oklchoklch(0.311 0.05 238.2)
Closest name: Blue Whale (#1e3442)Relative luminance 0.0307

Tints & shades

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

Harmonies

Complementary

Open in tool →

#472815

#154741 · #151b47

#471534 · #344715

Split-complementary

Open in tool →

#47151b · #474115

#411547 · #472815 · #1b4715

Contrast

#153447 as textRatioAAAA largeAAAFix
Aaon white
13.01:1passpasspassPasses AAA — no fix needed.
Aaon black
1.61:1failfailfail
  • AA: use #327ba9 as the text (4.54:1)
  • AAA: use #529dcb as the text (7.04:1)
  • AA: or shift the background to #999999 (4.57:1)
  • AAA: or shift the background to #bfbfbf (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #153447 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

#153447 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #153447
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 #153447 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/153447-9cb0c4-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