Color

#153d42

#153d42
hex#153d42
rgbrgb(21, 61, 66)
hslhsl(187, 52%, 17%)
oklchoklch(0.334 0.045 206.5)
Closest name: Sunken Harbour (#1c3d44)Relative luminance 0.0389

Tints & shades

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

Harmonies

Complementary

Open in tool →

#421a15

#154231 · #152642

#42153d · #3d4215

Split-complementary

Open in tool →

#421526 · #423115

#311542 · #421a15 · #264215

Contrast

#153d42 as textRatioAAAA largeAAAFix
Aaon white
11.81:1passpasspassPasses AAA — no fix needed.
Aaon black
1.78:1failfailfail
  • AA: use #2c808c as the text (4.57:1)
  • AAA: use #38a4b2 as the text (7.12:1)
  • AA: or shift the background to #a1a1a1 (4.57:1)
  • AAA: or shift the background to #c9c9c9 (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #153d42 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

#153d42 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #153d42
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 #153d42 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/153d42-a2b8be-df4e83-1f262d-e9f1ee?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