Color

#033f4a

#033f4a
hex#033f4a
rgbrgb(3, 63, 74)
hslhsl(189, 92%, 15%)
oklchoklch(0.339 0.058 214.3)
Closest name: Sunken Harbour (#1c3d44)Relative luminance 0.0407

Tints & shades

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

Harmonies

Complementary

Open in tool →

#490e03

#034931 · #031c49

#49033f · #3f4903

Split-complementary

Open in tool →

#49031c · #493103

#310349 · #490e03 · #1c4903

Contrast

#033f4a as textRatioAAAA largeAAAFix
Aaon white
11.58:1passpasspassPasses AAA — no fix needed.
Aaon black
1.81:1failfailfail
  • AA: use #068298 as the text (4.65:1)
  • AAA: use #08a3bf as the text (7:1)
  • AA: or shift the background to #a3a3a3 (4.59:1)
  • AAA: or shift the background to #cccccc (7.21:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #033f4a 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

#033f4a reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #033f4a
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 #033f4a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/033f4a-a2b7be-df4e7e-1f252d-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